94 Chemistry Elements And Compounds Trivia Questions with Answers
94 public questions with answers, drawn from the well. How many can you answer?
Which compound is the main mineral in the bones and teeth of vertebrates?
Answer
Hydroxyapatite
Which chemical element is the lightest noble gas?
Answer
Helium
Which compound is the oxidizing agent in household bleach, with the formula NaClO?
Answer
Sodium hypochlorite
What is the half-life of the carbon-14 isotope used in radiocarbon dating?
Answer
About 5,730 years
What compound is formed by the ionic bonding of sodium and chlorine?
Answer
Sodium chloride
Which compound is the main antifreeze ingredient with the formula HOCH₂CH₂OH?
Answer
Ethylene glycol
Which chemical compound is known as sulfuric acid and has the formula H₂SO₄?
Answer
Sulfuric acid
Which compound is the main component of the mineral gypsum, with the formula CaSO₄·2H₂O?
Answer
Calcium sulfate dihydrate
Which chemical compound is the main acid in vinegar?
Answer
Acetic acid
Which compound is commonly known as baking soda and has the formula NaHCO₃?
Answer
Sodium bicarbonate
What is the SI-defined number of entities in exactly one mole of a substance?
Answer
6.02214076 × 10²³
Which molecule is famously shaped like a soccer ball and contains 60 carbon atoms?
Answer
Buckminsterfullerene
Which compound is produced when carbon dioxide reacts with water to form H₂CO₃?
Answer
Carbonic acid
Which compound is the principal component of limestone and has the formula CaCO₃?
Answer
Calcium carbonate
Which compound is the mineral fluorite, with the chemical formula CaF₂?
Answer
Calcium fluoride
Which compound is the main active ingredient in many antacid tablets and has the formula Mg(OH)₂?
Answer
Magnesium hydroxide
Which chemical compound is also known as caustic soda?
Answer
Sodium hydroxide
Which chemical compound is known as dry ice?
Answer
Solid carbon dioxide
Which chemical element is the most abundant in the universe?
Answer
Hydrogen
Which compound causes the characteristic rotten-egg smell?
Answer
Hydrogen sulfide
Which compound is commonly called milk of magnesia?
Answer
Magnesium hydroxide
Which chemical compound is commonly called vitamin C?
Answer
Ascorbic acid
Which chemical compound is the main ingredient in plaster of Paris?
Answer
Calcium sulfate hemihydrate