Free Printable Counting Atoms in Equations

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Worksheets

Counting Atoms in Equations

Total questions: 6

Worksheet time: 6mins

Name

Class

Date

1.

Number of H in 3(NH₄)₂CrO₄

a)

4

b)

2

c)

8

d)

24

2.

The red numbers in the image below represent ________

a)

subscripts

b)

coefficients

c)

I don't know, and don't want to try

d)

None of the answers are correct

3.

How many atoms of aluminum are on each side of the following equation: 4Al + 3O₂--> 2Al₂O₃

a)

2

b)

6

c)

1

d)

4

4.

2H₂ + O₂--------> 2H₂O What are the reactants?

a)

----->

b)

2H₂O

c)

2H₂ +O₂

5.

2H₂ + O₂ ----> 2H₂O What is the product?

a)

------>

b)

2H₂O

c)

2H₂+ O₂

6.

Number of C's in 2Na₂CO₃

a)

1

b)

2

c)

3

d)

5

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