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Worksheets

Balancing Equations

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

Balance this equation.
_SnO2 +_H2-->_Sn +_H2O

a)

1,1,2,1

b)

1,2,1,1

c)

1,2,1,2

d)

1,2,2,1

2.

Balance this equation

_Al +_HCl --> _H2 +_AlCl3

a)

2,6,3,2

b)

it's already balanced

c)

4,12,3,4

d)

2,1,4,5

3.

Is this equation balanced?

a)

yes

b)

no

c)

Not enough information

4.

Is the following equation balanced?
2C2H2 + 5O2 --> 4CO2 + 2H2O

a)

yes

b)

no

5.

Is the following equation balanced?
4Fe + 3O2 --> 2Fe2O3

a)

yes

b)

no

6.

Balance this equation.
_CF4 + _Br2 -- _CBr4 + _F2

a)

2,1,2,1

b)

1,2,2,1

c)

1,2,1,2

d)

2,2,2,2

7.

Is the following equation balanced?...
Al + O2 --> 2Al2O3

a)

Yes!

b)

No!

8.

Which of the following equations are correctly balanced?

a)

12CO2 +H2O --> C6H12O6 + O2

b)

CO2 + 9H2O --> C6H12O6 + O2

c)

CO2 + H2O --> 3C6H12O6 + O2

d)

6CO2 + 6H2O --> C6H12O6 + 6O2

9.

Which problem is balanced?
(Check ALL answers)

a)

PbO2 + 2H2

b)

SO2 + H20 --> H2SO4

c)

2Na + 2H2O --> 2NaOH + H2

10.

Is this balanced?...
Fe + S --> FeS

a)

YES!

b)

NO!

11.

Balance this equation: @@ ext{C}_3 ext{H}_8 + ext{O}_2 ightarrow ext{CO}_2 + ext{H}_2 ext{O}@@

a)

A) 1,5,3,4

b)

B) 1,4,3,4

c)

C) 1,5,4,3

d)

D) 2,7,6,8

12.

Which of the following equations is balanced?

a)

A) @@ ext{N}_2 + 3 ext{H}_2 ightarrow 2 ext{NH}_3@@

b)

B) @@ ext{N}_2 + ext{H}_2 ightarrow ext{NH}_3@@

c)

C) @@2 ext{N}_2 + 3 ext{H}_2 ightarrow 2 ext{NH}_3@@

d)

D) @@ ext{N}_2 + 2 ext{H}_2 ightarrow 2 ext{NH}_3@@

13.

Is the following equation balanced? @@ ext{C}_6 ext{H}_{12} ext{O}_6 + 6 ext{O}_2 ightarrow 6 ext{CO}_2 + 6 ext{H}_2 ext{O}@@

a)

A) Yes

b)

B) No

14.

Balance this equation: @@ ext{Fe}_2 ext{O}_3 + ext{C} ightarrow ext{Fe} + ext{CO}_2@@

a)

A) 1,3,2,3

b)

B) 2,3,4,3

c)

C) 1,1,2,2

d)

D) 2,1,2,3

15.

Which of the following represents a balanced chemical equation for the combustion of methane?

a)

A) @@ ext{CH}_4 + 2 ext{O}_2 ightarrow ext{CO}_2 + 2 ext{H}_2 ext{O}@@

b)

B) @@ ext{CH}_4 + ext{O}_2 ightarrow ext{CO}_2 + ext{H}_2 ext{O}@@

c)

C) @@2 ext{CH}_4 + 3 ext{O}_2 ightarrow 2 ext{CO}_2 + 4 ext{H}_2 ext{O}@@

d)

D) @@ ext{CH}_4 + 3 ext{O}_2 ightarrow 2 ext{CO}_2 + 2 ext{H}_2 ext{O}@@