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Balancing Equations and Predicting Products

Total questions: 40

Worksheet time: 1hrs 20mins

Name
Class
Date
1.
What are the products of this reaction?
Cu+ AgNO3--> 
a)
Cu(NO3)2+Ag
b)
CuNO3 + Ag
c)
CuAg+NO3
d)
Cu+ AgNO3
2.
Write a Balanced Equation for this reaction:
C2H4 + 2 O2 -->
a)
C2O2 + H4
b)
CO2 + HOH
c)
CO + H
d)
2 CO2 + 2H2O
3.
Predict the products for the this reaction:
K + HCl --> 
a)
KCl + H2
b)
KHCl 
c)
KH + Cl2
d)
KCl + H
4.
What type of reaction is this?
2 C6H14 + 19 O2 --> 12 CO2 + 14 H2O
a)
Single Replacement
b)
Double Replacement
c)
Combustion
d)
Decomposition
5.
Which of the following equations represents the balanced synthesis reaction of iron (III) and oxygen?
a)
Fe + 3 O2 → Fe2O3
b)
3 Fe + 3 O2 → 2 Fe2O3
c)
2 Fe + O2 → Fe2O3
d)
4 Fe + 3 O2 → 2 Fe2O3
6.
What are the correct formulas and coefficients for the products of the following single-replacement reaction?
Mg + Al(OH)3 →
a)
No Reaction
b)
Al + Mg(OH)3
c)
2 Al + 3 Mg(OH)2
d)
3 Al + MgOH3
7.
If an element is diatomic it should have a subscript of___
a)
2, always
b)
2, only when it is by itself
c)
it shouldn't have a subscript, it should have a coefficent
8.
What kind of reaction is this:
4Fe  +  3O2 →   2Fe2O3 
a)
Synthesis
b)
Decomposition
c)
Single Replacement 
d)
Double Replacement
9.
What kind of reaction is this:
2H2O2 →2 H2O + O2
a)
Synthesis
b)
Decomposition
c)
Single Replacement 
d)
Combustion
10.
in a reaction, aqueous barium chloride reacts with aqueous potassium carbonate to produce solid barium carbonate and aqueous potassium chloride. what is the correct balanced equation.
a)
Ba2Cl(aq) + KCO3(aq) --> BaCO3(s) + KCl(aq)
b)
BaCl2(aq) + K2CO3(aq) --> BaCO3(s) + 2KCl(aq)
c)
BaCl(aq) + K2CO3(aq) --> BaCO3(s) + K2Cl(aq)
d)
Ba2Cl2(aq) + KCO3(aq) --> Ba2CO3(s) + KCl2(aq)
11.
 Predict the product(s):  H2O -->
a)
H and O
b)
H2 and O2
c)
H and OH
12.
Which of the following are PRODUCTS?
H2O + CO2 → HCO + HO
a)
H2O and CO2
b)
HCO and HO
c)
H2O ONLY
d)
HCO ONLY
13.
Classify
Zn + H2S → ZnS + H2
a)
synthesis
b)
combustion
c)
single replacement
d)
double replacement
14.
Classify
FeS + HCl → H2S + FeCl2
a)
synthesis
b)
combustion
c)
single replacement
d)
double replacement
15.
What does the Law of Conservation of Mass state?
a)
Matter cannot be gained or lost in a chemical reaction.
b)
Matter can only be lost in a chemical reaction.
c)
Matter can only be gained in a chemical reaction.
d)
Matter can be gained and lost in a chemical reaction. 
16.
What is the left part of a chemical equation called?
2H2 + O2 --> 2H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
17.
What is the little number after an element in a chemical equation called.
Example: H2
a)
Coefficient 
b)
Subscript
c)
Atom
d)
Equation
18.
What is the number before a chemical formula called?
Ex: 2H2 + O2 --> 2H2O
a)
Coefficient
b)
Subscript
c)
Atom
d)
Equation
19.
How many aluminum atoms are in Al2(SO4)3?
a)
1
b)
2
c)
3
d)
4
20.
How many hydrogens are in 4H2O?
a)
6
b)
8
c)
2
d)
4
21.
Balance this equation
_Zn+_HCl-->_ZnCl2 +_H2
a)
1,1,2,1
b)
1,1,1,2
c)
1,2,1,1
d)
2,1,1,1
22.

Balance this equation, AlCl3 + NaOH → Al(OH)3 + NaCl

a)

3,1,3,1

b)

1,3,3,1

c)

1,1,1,3

d)

1,3,1,3

23.
Type of Reaction? 
____ PbSO4 + ____ AgNO3 =>   
a)
Single Replacement
b)
Combustion
c)
Decomposition
d)
Double Replacement
24.
Type of Reaction? 
____ HBr + ____ Fe => 
a)
Single Replacement
b)
Combustion
c)
Decomposition
d)
Double Replacement
25.
Type of Reaction? 
Ca + 2AgCl  => 
a)
Single Replacement
b)
Combustion
c)
Decomposition
d)
Double Replacement
26.
Which of the following is a product of the equation:

Cl2  +  KBr  => 
a)
BrCl
b)
K2
c)
KCl
27.

Which of the following is a product of the equation:


AgNO3 + MgCl2 =>

a)

AgMg

b)

NO3Cl2

c)

MgNO3

d)

Mg(NO3)2

28.

Fill in the blank. (Copper has a charge of 2+)

Cu+ AgNO3 → Ag + _____

a)

Cu(NO3)2

b)

CuNO3

c)

CuAg

d)

Cu

29.

Predict the products of this synthesis reaction: H2 + Cl2 →

a)

HCl

b)

H2Cl2

c)

H2Cl

d)

HCl2

30.

Complete and balance this equation


Na2CO3 + AlCl3 -->

a)

3 Na2CO3 + 2 AlCl3 --> 2 Na3Al + 3 Cl2CO3

b)

Na2CO3 + AlCl3 --> Na2Cl3 + AlCO3

c)

Na2CO3 + AlCl3 --> NaCl + AlCO3

d)

3 Na2CO3 + 2 AlCl3 --> 6 NaCl + Al2(CO3)3

31.

The symbol for a substance dissolved in solution is ______

a)

(s)

b)

(l)

c)

(aq)

d)

(g)

32.

Predict the product of this synthesis reaction:

Al + S₈ →

a)

AlS

b)

AlS8

c)

Al2S

d)

Al2S3

33.

Predict the products for the decomposition of aluminum oxide, Al2O3 →

a)

Al + O2

b)

O + Al2

c)

Al2 + O3

d)

Al + O

34.
Name this reaction type:
Cl2 + 2KI -->  I2 + 2KCl
a)
Synthesis
b)
Single Replacement
c)
Double Replacement
d)
Decomposition
35.
According to the activity series, which of the following single replacement reactions can occur?
a)
Ca + Al2(SO4)3
b)
Fe + NaOH
c)
Ni + MgSO4
d)
Al + KOH
36.
Which chemical reaction type always forms Carbon Dioxide and Water?
a)
Double Replacement
b)
Single Replacement
c)
Combustion
d)
Decomposition
37.

Complete and balance the following reaction:


Ca + O2 -->

a)

Ca + O2 --> CaO2

b)

2Ca + O2 --> 2CaO2

c)

2 Ca + O2 --> 2 CaO

d)

4 Ca + O2 --> 2 Ca2O

38.
Which coefficients correctly balance the equation Fe(OH)3 --> Fe2O3 + H2O ?
a)
2, 2, 2
b)
2, 1, 3
c)
3, 4, 1
d)
1, 1, 1
39.
Determine the type of reaction:C6H12 + 9O2 --> 6CO2 + 6H2O
a)
Synthesis
b)
Single Displacement
c)
Combustion
d)
Decomposition
40.

Predict the products for this equation.

(Zn with a charge of +2)

Zn + H2SO4 -->

a)

Zn(SO4)2 + H

b)

ZnSO4 + H2

c)

ZnSO4 + H4

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