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Stoichiometry Review
Test Description: Stoichiometry Review
Instructions: Answer all questions to get your test result.
1) Which type of chemical equation involves one compound breaking apart into two or more molecules?
A
single replacement
B
synthesis
C
double replacement
D
decomposition
2) The study of the amounts of reactants used and products formed from a chemical reaction is called ___?
A
pharmacology
B
stoichiometry
C
biology
D
geology
3) The reactant that is used up first in a chemical reaction is known as the ___________ reactant.
A
surplus
B
excess
C
limiting
D
restricting
4) The SI unit used to measure the number of particles in a substance is called the ___.
A
liter
B
meter
C
kilogram
D
mole
5) The number, 6.02 times 10 to the 23rd power is known as
A
Avogadro's number
B
Einstein's constant
C
Schrodinger's number
D
Planck's constant
6) The mass of the reactants equals the mass of the products. This is the Law of
A
Multiple proportions
B
gravity
C
Avogadro's number
D
Conservation of Mass
7) The limiting reactant of a candle burning under a jar is the
A
oxygen
B
candle
C
jar
D
carbon dioxide
8) When converting to from moles of oxygen to grams of oxygen, the
A
1
B
3
C
2
D
4
9) When gas burns to cook food, the type of reaction is _____.
A
combustion
B
decomposition
C
single replacement
D
synthesis
10) Where do you find information about converting moles to grams?
A
in the number of moles
B
in Avogadro's number
C
in the mole ratio
D
in the periodic table
*select an answer for all questions
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