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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
double replacement
B
single replacement
C
decomposition
D
synthesis
2) The study of the amounts of reactants used and products formed from a chemical reaction is called ___?
A
stoichiometry
B
pharmacology
C
biology
D
geology
3) The reactant that is used up first in a chemical reaction is known as the ___________ reactant.
A
excess
B
limiting
C
restricting
D
surplus
4) The SI unit used to measure the number of particles in a substance is called the ___.
A
meter
B
liter
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
gravity
B
Multiple proportions
C
Conservation of Mass
D
Avogadro's number
7) The limiting reactant of a candle burning under a jar is the
A
oxygen
B
carbon dioxide
C
jar
D
candle
8) When converting to from moles of oxygen to grams of oxygen, the
A
3
B
4
C
2
D
1
9) When gas burns to cook food, the type of reaction is _____.
A
synthesis
B
decomposition
C
single replacement
D
combustion
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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