Last updated on September 7th, 2023 at 10:56 pm
Q: What is the name given to a quantity of a substance whose mass in grams is equal to the molecular mass of that substance in Daltons?
a) Mole
b) Gram
c) Kilogram
d) Pound
Answer: a) Mole
Q: The formula for a compound is written by placing the symbol of the _____ on the left and the symbol of the _____ on the right.
a) Cation, anion
b) Anion, cation
c) Basic radical, acidic radical
d) Acidic radical, basic radical
Answer: a) Cation, anion
Q: Which scientist is known for fundamental work related to Avogadro’s number?
a) John Dalton
b) Antoine Lavoisier
c) J. L. Proust
d) Amedeo Avogadro
Answer: d) Amedeo Avogadro
Q: What is the charge on a cation?
a) Positive
b) Negative
c) Neutral
d) Zero
Answer: a) Positive
Q: Which of the following elements is often found in a diatomic molecular state in its natural form?
a) Helium (He)
b) Neon (Ne)
c) Oxygen (O)
d) Sodium (Na)
Answer: c) Oxygen (O)
Q: What is the relative atomic mass of an element often compared to?
a) Hydrogen atom
b) Oxygen atom
c) Carbon atom
d) Nitrogen atom
Answer: c) Carbon atom
Q: Which law states that the mass of the original matter and the mass of the matter newly formed as a result of a chemical change are equal?
a) Law of Atomic Mass
b) Law of Constant Proportions
c) Law of Chemical Equilibrium
d) Law of Conservation of Matter
Answer: d) Law of Conservation of Matter
Q: What is the ratio of hydrogen to oxygen by mass in water, based on the law of constant proportions?
a) 1:8
b) 8:1
c) 2:1
d) 1:2
Answer: a) 1:8
