Review #2 - Chemical Formulas

Front

H₂O₂← ?
This number tells the number of atoms present.

Back

subscript

Front

This number tells how many molecules are in a chemical equation.

Back

coefficient

Front

2H₂O
How many Hydrogen atoms are present?

Back

4

Front

2H₂O
How many Oxygen atoms are present?

Back

2

Front

2H₂O
How many H₂O molecules are present?

Back

2

Front

5C₂H₅Cl
How many C₂H₅Cl molecules are present?

Back

5

Front

5C₂H₅Cl
What is the coefficient in the formula above?

Back

5

Front

5C₂H₅Cl
What is the subscript for Hydrogen in the formula above?

Back

5

Front

5C₂H₅Cl
What is the subscript for Carbon in the formula above?

Back

2

Front

5C₂H₅Cl
What is the subscript for Chlorine in the formula above?

Back

1