Counting Atoms in Chemical Formulas Practice

Front

What do we call a chemical substance made up of 2 or more different types of atoms bonded together?

Back

Compound

Front

In the formula C₃H₅(NO₃)₃, how many Carbon (C) atoms are there?

Back

3

Front

In the formula C₃H₅(NO₃)₃, how many Hydrogen (H) atoms are there?

Back

5

Front

In the formula C₃H₅(NO₃)₃, how many Nitrogen (N) atoms are there?

Back

3

Front

In the formula C₃H₅(NO₃)₃, how many Oxygen (O) atoms are there?

Back

9

Front

How many Hydrogen atoms are in 4H₂O?

Back

8

Front

What is the atom count for the compound 4C₂H₈O?

Back

C=8 H=32 O=4

Front

How many Nitrogen atoms are in (NH₄)₂CrO₄?

Back

2

Front

What is a subscript in a chemical formula?

Back

A subscript indicates the number of atoms of an element in a molecule.

Front

What is the purpose of parentheses in chemical formulas?

Back

Parentheses indicate that the atoms inside are grouped together and can be multiplied by a subscript outside.