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Balancing Equations Practice

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is the name for the numbers in front of H2 and H2O?

a)

Subscripts

b)

Coefficients

c)

Variables

2.

What do we call the chemicals on the right side of the arrow?

a)

Products

b)

Reactants

c)

Yields

3.

The small numbers written after the elements in the chemical formulas are called _________________

a)

Coefficients

b)

Subscripts

c)

Subdigits

4.

When reading the equation, what does the arrow mean?

a)

"Yields"

b)

"Arrow"

c)

"To"

5.

What is the product of this chemical equation?

a)

2H2

b)

O2

c)

2H2O

6.

Is this equation balanced?

a)

Yes

b)

No

7.

What coefficients should be added to balance the equation?

a)

None, it's already balanced.

b)

2Mg

c)

2O2

d)

2Mg AND 2O2

8.

What coefficients should be added to balance the equation?

a)

None, it's already balanced.

b)

4C

c)

4H2

d)

2H2

9.

Decide which coefficients should go in front of Al2O3 and O2 in order to balance the equation.

a)

2Al2O3 and 2O2

b)

2Al2O3 and 3O2

c)

4Al2O3 and 2O2

10.

What coefficients should be added to balance the equation?

a)

None, it's already balanced.

b)

2BaCl2

c)

2H2SO4

d)

2BaSO4

e)

2BaCl2 AND 2BaSO4