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Worksheets

Balancing Equations

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

Balance the following equation;

__Na + __H2O --> __NaOH + __H2

a)

2,2 --> 2,1

b)

4,4 --> 4,1

c)

1,2 --> 2,4

d)

1,2 --> 2,1

2.

Balance the following chemical equation :

__Ca + __H2O --> __Ca(OH)2 + __H2

a)

2,1 --> 2,1

b)

1,2 --> 1,1

c)

1,2 --> 2,4

d)

1,2 --> 2,1

3.

Balance the following chemical equation:

__CH4 + __O2 --> __CO2+ __H2O

a)

2,1 --> 2,1

b)

1,2 --> 1,1

c)

1,2 --> 1,2

d)

1,2 --> 2,1

4.

Balance the following chemical equation:

__H2SO3 + __KOH--> __H2O+ __K2SO3

a)

2,1 --> 2,1

b)

1,2 --> 1,1

c)

1,2 --> 1,2

d)

1,2 --> 2,1

5.

Balance the chemical equation:

__MnO2 + __HCl --> __MnCl2 + __H2O __Cl2

a)

4,1 --> 2,1,2

b)

1,2 --> 1,1,4

c)

1,4 --> 1,2,1

d)

1,4 --> 2,2,1

6.
Balance this equation
_N+ _H--> _NH3
a)
1,2,3
b)
1,3,2
c)
1,1,2
d)
2,1,1
7.

Balance the following chemical equation :

CS2 + _O2 --> CO2 + _SO2

a)

2,4

b)

3,2

c)

2,5

d)

1,6

8.

Balance the following chemical equation :

Al2(SO4)3 + _NaOH --> _Al(OH)3 + _NaSO4

a)

1,2,3

b)

3,4.,3

c)

6,2,3

d)

4,5,.6

9.

Balance the following equation:

Ni(NO3)2 + _NaOH --> Ni(OH)2 + _NaNO3

a)

0,0

b)

3,4

c)

1,4

d)

2,2

10.

Balance the following equation :

_Cl2 + _O2 --> _Cl2O7

a)

2,7,2

b)

1,3,4

c)

5,3,5

d)

6,1,2

11.

Balance the following equation :

_CaCl2 + _K3PO4 --> Ca3(PO4)2 + _KCl

a)

11,6,7

b)

9,3,1

c)

3,2,6

d)

4,2,6

12.

Balance the following equation :

_KCN + H2SO4 --> K2SO4 + _HCN

a)

3.,4

b)

3,6

c)

4,2

d)

2,2

13.

Balance the following equation :

SO2 + _H2S --> _H2O + _S

a)

2,2,3

b)

1,2,3

c)

4,2,2

d)

1,4,2

14.

Balance the following equation :

_KMnO4 + _C3H8O3 --> _K2CO3 + _Mn2O3 + _CO2 + _H2O

a)

14,4,7,13,6,18

b)

8,12,16,5,18,12

c)

14,4,7,7,516

d)

5,16,17,18,3,14

15.
Fill in the blanks with coefficient:
PCl5+_ H2O→_ HCl+H3PO4
a)
4, 5
b)
1, 6
c)
3, 8
d)
2,2