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WorksheetsBalancing
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
What is the "large" number that you CAN CHANGE in a chemical equation?
a)
Subscript
b)
Coefficient
c)
Product
d)
Reactant
2.
What is the small number that you CANNOT CHANGE in a chemical equation?
a)
Subscript
b)
Coefficient
c)
Product
d)
Reactant
3.
Why is it not possible to change subscripts?
a)
Changing the subscript changes the coefficients
b)
Changing the subscript changes the chemical equation into physical
c)
Changing the subscripts changes the type of covalent bonding between atoms
d)
Changing the subscripts changes the amount of atoms inside a molecule, thus changing the equation
4.
What type of chemical reaction is this?
Mg + 2HCl -----> MgCl2 + H2
Mg + 2HCl -----> MgCl2 + H2
a)
Synthesis
b)
Decomposiition
c)
Single Replacement
d)
Double Replacement
5.
What type of reaction is this?
H2O2 -------> H2O + O2
H2O2 -------> H2O + O2
a)
Synthesis
b)
Decomposition
c)
Combustion
d)
Single Replacement
6.
What type of reaction is this one?
AB + CD -------> AD + CB
OR
AB + CD ------> AC + BD
AB + CD -------> AD + CB
OR
AB + CD ------> AC + BD
a)
Combustion
b)
Double Replacement
c)
Single Replacement
d)
Decomposition
7.
What are the products in this equation?
Mg + 2HCl ----> MgCl2 + H2
Mg + 2HCl ----> MgCl2 + H2
a)
Mg + 2HCl
b)
2HCl and MgCl2
c)
MgCl2 + H2
d)
H2 and Mg
8.
What are the reactants in this equation?
Mg + 2HCl -----> MgCl2 + H2
Mg + 2HCl -----> MgCl2 + H2
a)
Mg + 2HCl
b)
2HCl and MgCl2
c)
MgCl2 + H2
d)
H2 and Mg
9.
What is the correct name for this Chemical Formula?
CH4
CH4
a)
Monocarbon trihyroxide
b)
Carbon tetrahyroxide
c)
Tetracarbon hydride
d)
Carbon tetrahydride
10.
What is the correct name for this Chemical Formula?
HCl (g)
HCl (g)
a)
Monohydrogen monochloride
b)
Hydrogen monochloride
c)
Monohydrogen chloride
d)
Hydrogen chloride
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