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Predicting Products - Chemical Reactions

Total questions: 23

Worksheet time: 43mins

Name
Class
Date
1.

Write a balanced reaction for this reaction

Zn(s) + H2S(aq) →

a)

ZnS + H

b)

ZnS + H2

c)

ZnS2 + H

d)

Zn2S + H2

2.

What are the products for this combustion reaction:

C2H4 + 2 O2 →

a)

C2O2 + H4

b)

CO2 + HOH

c)

CO + H

d)

CO2 + H2O

3.

Predict the products for the this reaction:

K + HCl →

a)

KCl + H2

b)

KHCl

c)

KH + Cl2

d)

KCl + H

4.

What is the generic formula for a single replacement reaction? [ A is a metal]

a)

A + BC ---> CA + B

b)

A + BC ---> BC + A

c)

A + BC ---> AB + C

d)

A + BC ---> AC + B

5.

What are the products of the following equation?

F2 + Ca →

a)

FCa

b)

F2Ca

c)

CaF2

d)

FCa

6.

What are the products of fluorine reacting with potassium phosphide

a)

F + KP → K + FP

b)

F2 + K3P → F2K3 + P

c)

F2 + K3P → KF + P

d)

F2 + K3P → KF + P2

7.
What kind of reaction is this:
2H2 + O2 --> 2H2O
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
8.
What kind of reaction is this:
2H2O2 →2 H2O + O2
a)
Synthesis
b)
Decomposition
c)
Single Replacement 
d)
Combustion
9.
What kind of reaction is this:
Fe + CuSO4 -> Cu + FeSO4
a)
Double Replacement
b)
Decompostion
c)
Single Replacement
d)
Combustion
10.
What kind of reaction is this:
2C3H7OH +9O2 -> 6CO2 + 8H2O
a)
Double Replacement
b)
Combustion
c)
Single Replacement
d)
Decomposition
11.
The reaction below is an example of?
AgNO3 + NaCl 
→ AgCl + NaNO3
a)
Single Replacement
b)
Double Replacement
c)
Decomposition
d)
Combustion
12.
An element plus additional element reacts to form one product is an example of which type of chemical reaction? 
a)
combustion
b)
decomposition 
c)
synthesis 
d)
single replacement
13.

Balancing this reaction:

____ CH4 + ____ O2 ---> ___ CO2 + ____ H2O

a)

2,1,3,1

b)

1,2,1,2

c)

1,2,2,1

d)

2,1,1,2

14.

The blue numbers in the image below represent ________

a)

formulas

b)

coefficients

c)

subscripts

d)

none of the answers are correct

15.

The red numbers in the image below represent ________

a)

subscripts

b)

coefficients

c)

formulas

d)

None of the answers are correct

16.
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
17.
What kind of reaction is this:
2H2O2 →2 H2O + O2
a)
Synthesis
b)
Decomposition
c)
Single Replacement 
d)
Combustion
18.
 Predict the product(s):  H2O -->
a)
H and O
b)
H2 and O2
c)
H and OH
19.

To determine whether a single replacement reaction will happen, one must consult

a)

a lexicon

b)

the activity series

c)

a solubility chart

d)

One Thousand Magical Herbs and Fungi by Phyllida Spore

20.

Predict the products, before balancing.

Co2(SO4)3 + NaOH -->

a)

CoOH + NaSO4

b)

CoNa + OH(SO4)3

c)

Co2OH + Na(SO4)3

d)

Co(OH)3 + Na2SO4

e)

no reaction

21.

Predict the products of the following decomposition reaction, before balancing.

HgO -->

a)

Hg + O

b)

Hg2 + O2

c)

Hg + O2

d)

Hg2 + O

22.

What are the products for this combustion reaction:

C2H4 + 2 O2 -->

a)

C2O2 + H4

b)

CO2 + HOH

c)

CO + H

d)

CO2 + H2O

23.

Predict the products for the this Double Replacement reaction:

AgNO3 + KCl →

a)

AgCl + KNO3

b)

AgK + ClNO3

c)

KAg + NO3Cl

d)

AgCl + 3 KNO