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[Trivia] Chemistry Quiz (#4157)
Co-authored-by: Flame442 <34169552+Flame442@users.noreply.github.com> Co-authored-by: Jakub Kuczys <me@jacken.men>
This commit is contained in:
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AUTHOR: Hanumat, Stolas, Hermes, thisisjvgrace, FunTrivia
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When Kekule claimed to have hallucinated an image that revealed the structure of benzene, what did he say he saw?:
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- Ouroboros
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- An ouroboros
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Which Noble Gas has the highest proton count?:
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- Radon
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- Rn
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When an element undergoes beta radiation, what happens to its atomic number?:
|
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- Increase
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- It increases
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In Rutherford’s ‘gold foil’ experiment, what was discovered?:
|
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- The nucleus
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- nucleus
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What is the common term for an electrochemical cell in which terminals are connected to electrodes immersed in a solution of electrolytes?:
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- Battery
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- Batteries
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- A battery
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What chemical was suspected of potentially having caused the fatalities in what is now known as the 1976 Philadelphia Legionnaires disease outbreak due to the similarity in symptoms between poisoning from it and Legionaires disease?:
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- Nickel carbonyl
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- Tetranickelcarbonyl
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What compound is produced by the Haber process?:
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- Ammonia
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What English chemist and physicist discovered hydrogen?:
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- Cavendish
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- Henry Cavendish
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Which chemical causes the burning taste sensation when eating chilies?:
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- Capsaicin
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The periodic table’s abbreviation for mercury is Sn, based off an ancient name of the element. What is this short for?:
|
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- Stannum
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What is the proper mineral name of ‘fool’s gold’?:
|
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- Pyrite
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What is the only letter that doesnt appear in the periodic table?:
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- J
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What is the atomic number of Thulium?:
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- 69
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- Sixty-nine
|
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- Sixty-Nine
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What compound is Uranium in when it undergoes gaseous enrichment?:
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- Uranium Hexafluoride
|
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- Hex
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What was the first synthetic element created in a laboratory?:
|
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- Technetium
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What piece of equipment, other than a glove box, is often used to perform air-free syntheses?:
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- Schlenk line
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Exposure to what chemical substance led to the death of Karen Wetterhaun despite her following proper safety procedures?:
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- dimethylmercury
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What is the temperature pressure combination where solid, liquid, and gas phases all exist simultaneously called?:
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- Triple Point
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- The Triple Point
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What colour does potassium nitrate burn?:
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- Violet
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What salt substitute was quickly discontinued once it was discovered to be highly toxic?:
|
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- Lithium Chloride
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- LiCl
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What metal has the highest melting point?:
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- Tungsten
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What colour is liquid oxygen?:
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- Blue
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Which one of these elements is NOT named after a place - Californium, Seaborgium, Berkelium, Dubnium, or Polonium?:
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- Seaborgium
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What is the classical name for mercury that is abbreviated as Hg on the periodic table?:
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- Hydrargyrum
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Alfred Nobel, the creator of the Nobel Prize, was most famous for which invention?:
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- Dynamite
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If an aromatic substituent is added directly adjacent to an already placed substituent, then the reaction was an ___-substitution:
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- Ortho
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What is the nickname of 1-Diazidocarbamoyl-5-azidotetrazole?:
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- Azidoazide azide
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What alternative name for element 105 was rejected by IUPAC in favor of ‘Dubnium”?:
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- Hahnium
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The most energetic form of radiation is _____ radiation:
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- Gamma
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When compared to other elements in terms of their radioactive half-lives, many isotopes of Uranium and Plutonium (among others) stand out as having unusually long half lives. What is this phenomenon referred to as?:
|
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- The Island of Stability
|
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- Island of Stability
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What does RDX stand for?:
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- Research Department Explosive
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Who established the law of the conservation of mass?:
|
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- Lavoisier
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The four elements of Earth, Air, Wind, and Fire are well known. However, the alchemist Paracelsus rejected these in favor of three ‘principles’. What were these principles?:
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- Salt, Sulfur, and Mercury
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- Salt Sulfur Mercury
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Ozone is an allotrope of which element?:
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- Oxygen
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What compound consists of a benzene ring with an attached amino group?:
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- Aniline
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What is the rarest naturally occurring element in the earth’s crust?:
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- Astatine
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What is the most abundant element in the universe?:
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- Hydrogen
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While thermonuclear weapons are often known as ‘hydrogen bombs’, the fusion fuel used are not strictly hydrogen, but rather a mixture of its isotopes, ______ and _______:
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- deuteride tritium
|
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- tritium dueteride
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What is the only element known to have achieved superfluidity?:
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- Helium
|
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- He
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Heavy water differs from regular water in having a different isotope of hydrogen. What is this isotope?:
|
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- Deuterium
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What is PVC short for?:
|
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- Polyvinyl Chloride
|
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What is the proper chemical name for baking soda?:
|
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- Sodium bicarbonate
|
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What was the alchemical name for mercury?:
|
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- quicksilver
|
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- quick silver
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An alpha particle, produced by alpha decay, is identical to which element’s nucleus?:
|
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- Helium
|
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- He
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Name one of the periodic tables’ in their original latin. (Only elements with different symbols than their common names will count.):
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- plumbum
|
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- natrium
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- stanum
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- kalium
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- stibium
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- cuprum
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- hydrargyrum
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In NMR spectroscopy, the chemical shifts are most often reported by the Delta scale. What alternative scale is still sometimes used?:
|
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- Tau
|
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When carbonyl groups are ligated to Molybdenum or other transition metals, the IR stretch of the carbonyl bond decreases in wavenumber due to what effect?:
|
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- Pi backbonding
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What is the last of the first 54 elements?:
|
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- Xenon
|
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What is responsible for the coloured photon emissions of neons?:
|
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- excitation
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What is used as the reference frame for NMR spectroscopy?:
|
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- Tetramethylsilane
|
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- TMS
|
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DCM is shorthand for what solvent?:
|
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- Dichloromethane
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Green chemistry, chemistry practiced to preserve the environment, has a specific focus on eliminating __________ from reactions?:
|
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- heavy metals
|
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η is used in organometallic naming conventions to denote what?:
|
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- Hapticity
|
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- Ligand coordination
|
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Tungsten was discovered in 1783 by chemists of which nation?:
|
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- Spain
|
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While Carbon-12 is the most common isotope of Carbon, it is unusable for NMR because it has no spin. What isotope of Carbon is most often used for NMR spectroscopy?:
|
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- Carbon-13
|
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- 13
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The book Silent Spring, which criticizes pesticide use, focuses most heavily on what class of pesticides?:
|
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- Organochlorides
|
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This element is notable for its nontoxic oxide, used in cosmetology and general white pigments:
|
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- bismuth
|
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- Bi
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When was the alchemical dream of turning lead into gold realized?:
|
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- 1981
|
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Organic compounds are primarily composed of these 3 elements:
|
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- carbon hydrogen oxygen
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- oxygen hydrogen carbon
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- carbon oxygen hydrogen
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- oxygen carbon hydrogen
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- hydrogen oxygen carbon
|
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- hydrogen carbon oxygen
|
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What is the household name of the simplest ketone?:
|
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- acetone
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What is the household name of the simplest aldehyde?:
|
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- formaldehyde
|
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Chloroform and diethyl ether have both historically been used as…?:
|
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- pain relievers
|
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- anaesthetics
|
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- anasthetics
|
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A fifth state of matter, where quantum micro-effects are realized across the entire substance, is known as…?:
|
||||
- bose-einstein condensate
|
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- bose-einstein condensation
|
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- bose einstein condensate
|
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- bose einstein condensation
|
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The Statue of Liberty, in New York, is green due to the patina process of which metal?:
|
||||
- copper
|
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- Cu
|
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Which synthesis produces fuel oil and other liquid hydrocarbons?:
|
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- Fischer-Tropsch
|
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What compound gives the blood of the horseshoe crab its distinctive blue color?:
|
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- Hemocyanin
|
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What common solvent is produced from mixing nail polish, moonshine, and bleach, then reducing with pennies?:
|
||||
- chloroform
|
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What device was used by alchemists to distill materials?:
|
||||
- Alembic
|
||||
- the alembic
|
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In electrochemistry, what does the abbreviation SHE refer to?:
|
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- Standard Hydrogen Electrode
|
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Which British chemist is best known for his book "The Sceptical Chymist"?:
|
||||
- Robert Boyle
|
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While almost all motion stops at 0 degrees Kelvin, some forms of motion still exist in minute quantities. Name one of these.:
|
||||
- Vibrational
|
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- Rotational
|
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The release of what chemical is considered to mark the beginning of chemical weapons use in World War 1?:
|
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- Chlorine
|
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The description of cyanide as smelling like almonds originally referred to a specific kind of almond, which had its distinct smell from its naturally occurring cyanide content. What type of almonds are these?:
|
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- Bitter
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- bitter almonds
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What chemical compound has been alleged to cause hallucinations in the drinkers of absinthe?:
|
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- Thujone
|
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This class of pesticides, believed to be particularly hazardous to bees, is named after the fact that its constituents share chemical similarities to nicotine.:
|
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- Neonicotinoid
|
||||
- Neonicotinoids
|
||||
What is the full name of the solvent THF?:
|
||||
- Tetrahydrofuran
|
||||
Crown ethers are so named because their structures are what?:
|
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- cyclic
|
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Drinking a shot of which alcohol causes blindness?:
|
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- methanol
|
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What rule or principle determines electron filling order?:
|
||||
- pauli exclusion
|
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What rule or principle determines aromaticity:
|
||||
- Hückel's rule
|
||||
- 4n+2
|
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- huckel’s rule
|
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Which renowned French chemist was guillotined for tax fraud?:
|
||||
- Lavoisier
|
||||
"Which of the following has the weakest conjugate base?\nA) Ethanoic Acid\nB) Water\nC) Sodium Hydroxide\nD) Hydrochloric Acid":
|
||||
- D
|
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"Vital to soap production, it is widely used as \"caustic\" in industries during cleaning processes. Which of the following compounds am I describing?\nA) Potassium hydroxide\nB) Magnesium hydroxide\nC) Lithium hydroxide\nD) Sodium hydroxide":
|
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- D
|
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"what do scientists use to measure the acidity of a liquid?":
|
||||
- pH scale
|
||||
- pH
|
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"Litmus is a common indicator used to tell whether something is an acid or a base. If you dip a piece of blue litmus paper into an acid, what color will it turn?":
|
||||
- Red
|
||||
"Which of the following is a base?\nA) Vinegar\nB) Tomato juice\nC) Common salt\nD) Caustic soda":
|
||||
- D
|
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"We often use vinegar for preserving and seasoning of foods. Vinegar is a highly diluted _______________ acid.":
|
||||
- acetic
|
||||
"Water can act both as an acid or a base according to Brønsted-Lowry theory, either giving out or taking a proton. What are such substances also known to be?":
|
||||
- Amphiprotic
|
||||
"What is the pH of water at 25 degrees celsius?":
|
||||
- 7
|
||||
- seven
|
||||
"The 'fizz' in soft drinks is produced by adding which acid?":
|
||||
- carbonic acid
|
||||
"A base commonly known as 'Caustic Potash' is used for making soft soaps. What is the correct chemical formula for this base?":
|
||||
- KOH
|
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"Which acid is found in fruits such as limes and oranges and is classified as a weak acid?":
|
||||
- citric acid
|
||||
"If I react magnesium with hydrochloric acid, what gas is produced?":
|
||||
- Hydrogen
|
||||
"The chemical name for Vitamin C is __________ acid?":
|
||||
- ascorbic
|
||||
"A very well known gas is highly basic when dissolved in water but mildly basic in vapour form. It is used for making explosives such as TNT and fertilizers such as Urea. Which gas is it?":
|
||||
- ammonia
|
||||
"Which acid has the formula HCNO?":
|
||||
- Cyanic Acid
|
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"This acid is used in almost all car batteries and is also known as 'Oil of Vitriol'. Which acid is it?":
|
||||
- sulphuric acid
|
||||
- sulphuric
|
||||
- H2SO4
|
||||
"If you were to put some universal indicator in a very strong base, what color would it turn?":
|
||||
- Purple
|
||||
"Which of the following is neutral in water?\nA) Iodine\nB) Baking soda\nC) Diethyl amine\nD) Potassium chloride":
|
||||
- D
|
||||
"What is the so called name of a mixture of nitric acid and hydrochloric acid?":
|
||||
- Aqua regia
|
||||
"Which of the following salts cannot undergo hydrolysis?\nA) Sodium Oxalate\nB) Ammonium Nitrate\nC) Ammonium Ethanoate\nD) Magnesium Chloride":
|
||||
- D
|
||||
"Which acid is used in the production of soda?":
|
||||
- carbonic acid
|
||||
"Which acid is formed when milk is fermented to form yoghurt?":
|
||||
- Lactic acid
|
||||
- Lactic
|
||||
"If a base dissolves in water, by what name is it better known?":
|
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- Alkali
|
||||
"Which of the following is a non-essential sulfur-containing amino acid?\nA) methionine\nB) cysteine\nC) valine\nD) glutamate":
|
||||
- B
|
||||
"Diets high in sugar and carbohydrates lead to a sharp rise in blood glucose. What term is given to such high blood glucose levels?":
|
||||
- Hyperglycemia
|
||||
"What is the most abundant protein in the human blood plasma?":
|
||||
- albumin
|
||||
"Which of the following amino acids is the smallest of all amino acids?\nA) Alanine\nB) Valine\nC) Glycine\nD) Serine":
|
||||
- C
|
||||
"Which one of these macromolecules is the most complex of all macromolecules?\nA) proteins\nB) lipids\nC) carbohydrates\nD) nucleic acids":
|
||||
- A
|
||||
"The individual units of proteins are called amino acids. What is the term for short chains of these amino acids?":
|
||||
- Peptides
|
||||
"What is the molecular formula for glucose?":
|
||||
- C6 H12 O6
|
||||
- C6H12O6
|
||||
"Which amino acid can form a special covalent bond called a disulfide bond?":
|
||||
- Cysteine
|
||||
"Ceruloplasmin is a type of?":
|
||||
- Metalloprotein
|
||||
"What is the only macromolecule whose monomers don't undergo dehydration to become long-chain polymers?":
|
||||
- lipids
|
||||
"Lipids are useful as an energy source when glucose is scarce. Specifically, fatty acids undergo a process known as beta oxidation in order to generate energy. Where does beta oxidation take place in our cells?":
|
||||
- Mitochondria
|
||||
"Let's start with a simple combustion! I take some methanol (CH3OH) and burn it with ample oxygen (O2) available. Apart from carbon dioxide (CO2), what other reaction product do I get? Give the formula, not the name!":
|
||||
- H2O
|
||||
"What is the formula for cesium bromide?":
|
||||
- CsBr
|
||||
"Which of these has the formula CH4?\nA) methane\nB) butane\nC) pentane\nD) octane":
|
||||
- A
|
||||
"Nitrous Oxide also known as?":
|
||||
- Laughing Gas
|
||||
"Acetic acid also known as?":
|
||||
- Vinegar
|
||||
"Which chemical has the formula C4H10?":
|
||||
- butane
|
||||
"Abbreviation for Trinitrotoluene?":
|
||||
- TNT
|
||||
"H2TeO3 is the formula for what acid?":
|
||||
- tellurous acid
|
||||
"What is the common name for sodium bicarbonate?":
|
||||
- baking soda
|
||||
"What is the formula for ammonia?":
|
||||
- NH3
|
||||
"What is the correct formula for methyl alcohol?":
|
||||
- CH3OH
|
||||
"Acetylsalicylic acid also known as?":
|
||||
- Aspirin
|
||||
"Sodium hypochlorite also known as?":
|
||||
- Bleach
|
||||
"Dihydrogen monoxide also known as?":
|
||||
- Water
|
||||
"Ions that have a positive charge are called what?":
|
||||
- cations
|
||||
"If an isotope of boron has a mass number of eleven, how many neutrons does it have?":
|
||||
- 6
|
||||
- six
|
||||
"Which of these is the odd one out? (Think chemical composition)\nA) Dry ice\nB) Iodine\nC) Sulfuric acid\nD) Water":
|
||||
- B
|
||||
"Which gas is pale yellow in colour, and is both highly toxic and corrosive?":
|
||||
- fluorine
|
||||
"Methylated spirits is a very common household chemical - but what is its main component?":
|
||||
- ethanol
|
||||
- alcohol
|
||||
"What substance goes milky/cloudy when you bubble carbon dioxide into it?":
|
||||
- Lime water
|
||||
"Which of the following is an ore of Lead?\nA) Garnierite\nB) Cerrusite\nC) Pentlandite\nD) Nicolite":
|
||||
- B
|
||||
"Which of the following is a non-electrolyte?\nA) Calcium hydroxide\nB) Potassium chloride\nC) Ethyl alcohol\nD) Sulfuric acid":
|
||||
- C
|
||||
"Which substance is primarily used as a fire extinguisher for fires originating from electrical equipment?":
|
||||
- carbon dioxide
|
||||
- CO2
|
||||
"Which of the following people won the Nobel Prize in Chemistry?\nA) Marie Curie\nB) Pierre Curie\nC) Henri Becquerel\nD) All of these":
|
||||
- A
|
||||
"Isotopes of the same element have different numbers of what?":
|
||||
- Neutrons
|
||||
"Which noble gas, discovered in 1898, is characterized by its bright orange and green spectral lines?":
|
||||
- krypton
|
||||
"I have a packet of French fries. My friend says that if I put a little acetic acid in the fries, they will taste better. I am astounded. I ask him if my tongue will burn. Then my friend laughs and tells me acetic acid is the chemical name for...":
|
||||
- vinegar
|
||||
"Caro's acid contains sulphur, oxygen and hydrogen. What is its chemical formula?":
|
||||
- H2SO5
|
||||
"What is the main component of biogas and natural gas?":
|
||||
- Methane
|
||||
"Which one of the following is an alkali?\nA) Strontium hydroxide\nB) Sodium hydroxide\nC) Rubidium hydroxide\nD) Aluminium hydroxide":
|
||||
- B
|
||||
"In which year did Mendeleev publish his version of the periodic table?":
|
||||
- 1869
|
||||
"What ion is necessary for forming strong bones?":
|
||||
- Calcium
|
||||
"Which of these solutions is capable of dissolving gold?\nA) Acetone\nB) Water\nC) Aqua regia\nD) Battery acid":
|
||||
- C
|
||||
"Which of these organic compounds is in a different class than the rest?\nA) Ethene\nB) Propene\nC) Pentene\nD) Benzene":
|
||||
- D
|
||||
"Which chemical element is named after the creator of dynamite?":
|
||||
- Nobelium
|
||||
"This gas becomes liquid at -196C. It is essential to life, and is a component of all proteins.":
|
||||
- Nitrogen
|
||||
"What colour flame does Lithium have when it is lit?":
|
||||
- crimson
|
||||
"According to Boyle's Law, if the volume of a gas decreases, its pressure will ________ (assuming temperature is constant)":
|
||||
- increase
|
||||
"Acetic acid and formic acid are mineral acids or organic acids?":
|
||||
- organic
|
||||
- organic acid
|
||||
- organic acids
|
||||
"What is another name for Mercury?":
|
||||
- Quicksilver
|
||||
"Which of these formulas can produce zinc chloride?\nA) acetic acid + zinc\nB) sulphuric acid + zinc\nC) nitric acid + zinc\nD) hydrochloric acid + zinc":
|
||||
- D
|
||||
"What ion of a highly poisonous substance is composed of an atom of carbon plus an atom of nitrogen?":
|
||||
- cyanide
|
||||
"This gas is the second most abundant element in the universe, and has the lowest melting point of any element.":
|
||||
- helium
|
||||
"Kevlar is a type of what?":
|
||||
- polyamide
|
||||
"What is the general building block common to all proteins?":
|
||||
- amino acids
|
||||
- amino acid
|
||||
"This pigment is what affects the colour of the hair, skin and eyes in humans and other mammals. It also helps protect the skin from the Sun's harmful ultra-violet (UV) rays. It is what helps human skin tan in the sun. What is the name of this pigment?":
|
||||
- melanin
|
||||
"Nail polish remover is something that girls just can't do without. Which is the major active ingredient in nail polish remover?":
|
||||
- acetone
|
||||
"What element is graphite made up of?":
|
||||
- carbon
|
||||
"Coal is formed due to the process of?":
|
||||
- Carbonization
|
||||
"In what polyatomic ion does nitrogen have a valency of 5?":
|
||||
- nitrate
|
||||
"What does pH stand for?":
|
||||
- Potential hydrogen
|
||||
"Care must be taken when handling this radioactive gas. Long term exposure, especially in smokers, can cause lung cancer. Which gas is it?":
|
||||
- radon
|
||||
"Beta-carotene, the pigment that gives carrots their orange colour, is an important source of which vitamin that helps us see?":
|
||||
- A
|
||||
- Vitamin A
|
||||
"*Water* is what all life in the world depends on. Is it an element, compound or mixture?":
|
||||
- Compound
|
||||
"Which variety of coal contains the highest percentage of carbon?":
|
||||
- Anthracite
|
||||
"What is the percentage of silver in German Silver?":
|
||||
- 0
|
||||
- zero
|
||||
"Oil of vitriol is the historic name for which acid?":
|
||||
- sulfuric acid
|
||||
- sulfuric
|
||||
"Iron is galvanized to prevent rusting and corrosion. Which metal is primarily used for galvanization?":
|
||||
- zinc
|
||||
"Enter organic chemistry, the study of all things natural and the base on which biology is founded. This deceptively simple study is based on molecules which all contain one element. Which one?":
|
||||
- carbon
|
||||
"Please choose what gas all of these four cases produce? The four cases are acid rain on a limestone statue, a candle burning, a dog panting and fermenting grapes to make wine.":
|
||||
- Carbon dioxide
|
||||
- CO2
|
||||
"In nature, this gas is only ever found combined with other elements. In its pure state however, it is fatal if inhaled.":
|
||||
- chlorine
|
||||
" The change from the solid state to the gaseous state is called?":
|
||||
- Sublimation
|
||||
"Which of the following would you most likely sprinkle on your food?\nA) NaOH\nB) HF\nC) Mg\nD) KCl":
|
||||
- D
|
||||
"Can you smell waxy menthol? With this sharp smell! It's enough as a counterirritant. Used for throat infections! Guess the name?":
|
||||
- Peppermint
|
||||
"Marie and Pierre Curie extracted radium from which ore?":
|
||||
- Uraninite
|
||||
"Plaster of Paris is commonly used for making moulds and statues. Which compound is used to make Plaster of Paris?":
|
||||
- calcium sulphate
|
||||
"Which metal has the lowest vapor pressure and the highest melting point?":
|
||||
- tungsten
|
||||
"The digestive process breaks down food into small molecules. Carbohydrates are broken down into glucose and other sugars, which are in turn degraded further in preparation for entry into the citric acid cycle. The citric acid cycle produces energy and what gas?":
|
||||
- carbon dioxide
|
||||
- CO2
|
||||
"What chemical is made during 'The Haber Process'?":
|
||||
- ammonia
|
||||
"Who published two laws of electrolysis in the 1830s?":
|
||||
- Faraday
|
||||
"What precious metal is obtained from the metallic white mineral called Sperrylite?":
|
||||
- Platinum
|
||||
"The water of a swimming pool is disinfected by passing which nonmetal through the water?":
|
||||
- chlorine
|
||||
"What is the name of the bleaching agent in commercially available tooth whitening products?":
|
||||
- Carbamide peroxide
|
||||
- urea peroxide
|
||||
- urea hydrogen peroxide
|
||||
- percarbamide
|
||||
"Which of these is liquid at room temperature?\nA) Chlorine\nB) Iodine\nC) Oxygen\nD) Bromine":
|
||||
- D
|
||||
"What is the name of this gas is used with helium in making gas lasers, but is no doubt better known for its use in lighting?":
|
||||
- neon
|
||||
"Hydrogen sulfide has how many hydrogen atoms?":
|
||||
- 2
|
||||
- two
|
||||
"Which metal is the most malleable?":
|
||||
- gold
|
||||
"The spider-webs we see around us are constructed out of fine, silky threads of a certain variety of chemical compounds. Which compounds are these?":
|
||||
- proteins
|
||||
- protein
|
||||
"A magnesium ribbon is burnt in the air, to form magnesium oxide (MgO). Is this oxide an element, compound or a mixture?":
|
||||
- compound
|
||||
"The name of this naturally radioactive halogen is?":
|
||||
- Astatine
|
||||
"Brass is an?":
|
||||
- alloy
|
||||
"Which white compound is used as a food seasoning and preservative, and can be *mined* from water?":
|
||||
- Salt
|
||||
- NaCl
|
||||
- Sodium Chloride
|
||||
"Tamarind tastes sour because it contains which acid?":
|
||||
- tartaric acid
|
||||
"Which of the following ions is generally considered insoluble?\nA) Sodium\nB) Potassium\nC) Ammonium\nD) Carbonate":
|
||||
- D
|
||||
"Which of the below compounds is a compound once found in many skin whitening products but which was banned from use by the European Union due to its suspected carcinogenic properties?\nA) Salicylic acid\nB) Sodium benzoate\nC) Hydroquinone\nD) Linalool":
|
||||
- C
|
||||
"Who is credited with coining the idea of Triads?":
|
||||
- Dobereiner
|
||||
"E. coli bacteria also manufacture a certain vitamin for us in our bodies; which one is it?":
|
||||
- Vitamin K
|
||||
- K
|
||||
"The air we breathe - is it an element, compound or mixture?":
|
||||
- mixture
|
||||
"How many Hydrogen atoms are present in a methane molecule?":
|
||||
- 4
|
||||
- four
|
||||
"If you want to make clean seawater pure enough to drink, that water must first be?":
|
||||
- distilled
|
||||
"Which gas is usually mixed with oxygen in scuba diving tanks for breathing?":
|
||||
- Helium
|
||||
- Nitrogen
|
||||
"What phase change occurs when water becomes steam?":
|
||||
- vaporization
|
||||
"What is the chemical formula for table salt?":
|
||||
- NaCl
|
||||
"Photosynthesis is a (bio)chemical process occurring in plants. The plants use sunlight as an energy source to turn carbon dioxide, water and some other nutrients into new plant material and a vital gas for all air breathing organisms (including us!). What is this gas?":
|
||||
- Oxygen
|
||||
"Where might you find americium-241 at in your house?":
|
||||
- Smoke detectors
|
||||
"When alcohol and acid mixes, what organic material forms?":
|
||||
- Ester
|
||||
"This gas when combined with hydrogen tends to make things wet, and we would die without it!":
|
||||
- Oxygen
|
||||
"Poison ivy is one of the most harmful plants; its main potent ingredient is a certain oil. Which oil is this?":
|
||||
- urushiol
|
||||
"Which of the following is an endothermic reaction?\nA) dissolving sodium hydroxide in water\nB) Haber process\nC) neutralization\nD) dissolving sodium chloride in water":
|
||||
- D
|
||||
Reference in New Issue
Block a user