Law Of Conservation Of Mass Question Preview (ID: 60461)
8.P.1.4.
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In chemical reactions, the total amount of matter at the end is less than at the beginning.
a) True
b) False
c)
d)
Matter/Mass cannot be created or destroyed.
a) Law of Superposition
b) Law of Gravity
c) Law of Conservation of Mass
d) Law of Conservation of Energy
A balanced chemical equation supports the law of conservation of mass.
a) True
b) Flase
c)
d)
If there are 25 atoms at the beginning of a chemical reaction, there will be _______ atoms at the end
a) 30
b) 25
c) 20
d) 15
In order to balance a chemical equation, you can change coefficients.
a) True
b) False
c)
d)
2 molecules of H2O have how many total atoms
a) 3
b) 4
c) 5
d) 6
How many atoms are in one molecule of CO2
a) 2
b) 3
c) 4
d) 5
If a chemical reaction starts with 200 atoms then it will end with 200 atoms.
a) True
b) False
c)
d)
if you start a chemical reaction with 50 pounds of reactants, then you must have 50 pounds at the end.
a) True
b) False
c)
d)
How man atoms are in C6H12O6
a) 12
b) 18
c) 24
d) 30
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