Free Printable Balancing Chemical Equations

1.

What is the left part of a chemical equation called?

2H₂ + O₂ ---> 2H₂O

a)

Reactants

b)

Yields

c)

Products

d)

Chemical equation

2.

What is the right part of a chemical equation called?

2H₂ + O₂ ---> 2H₂O

a)

Reactants

b)

Yields

c)

Products

d)

Chemical Equation

3.

What is the number before a chemical formula called?

Example: 2H₂ + O₂ ---> 2H₂O

a)

Coefficient

b)

Atom

c)

Subscript

d)

Equation

4.

How many Oxygens are in this molecule?
(OH)₂

5.

Balance this equation

Mg + (a) HCl ---> MgCl₂ + H₂

Choose from the below words

2

1

3

4

6.

What coefficients are needed to balance the equation?

(a) Al + (b) O₂ ---> 2Al₂O₃

Choose from the below words

4

3

1

2

5

7.

What coefficient should be used to make the following equation balanced?

N₂+ O₂→ (a) NO

Choose from the below words

2

1

3

4

8.

Balance this equation (a) N₂+ (b) H₂--> (c) NH₃

Choose from the below words

1

3

2

4

5

6

9.

Balance this equation.

(a) CF₄+ (b) Br₂→ (c) CBr₄+ (d) F₂

Choose from the below words

1

2

3

4

10.

How many oxygen atoms are in this chemical formula?

a)

6 oxygen atoms

b)

2 oxygen atoms

c)

3 oxygen atoms

d)

4 oxygen atoms

11.

How many Iron (Fe) atoms are in this chemical formula?

a)

2 iron atoms

b)

6 iron atoms

c)

5 iron atoms

d)

4 iron atoms

12.

Balance the following:

(a) $H_2+$ (b) $O_2\rightarrow$ (c) $H_2O$

Choose from the below words

2

1

3

4

5

13.

Balance the following:

(a) $P_4+$ (b) $O_2\rightarrow$ (c) $P_2O_3$

Choose from the below words

1

3

2

4

5

Balancing Chemical Equations

Total questions: 13

Worksheet time: 20mins

Similar Resources on Wayground