Reviewing Counting Atoms in Chemical Formulas

Front

How many chlorine atoms are in NaClO₄?

Back

1

Front

How many total atoms are in 4N₂?

Back

8

Front

What is the small number to the right of an elemental symbol called?

Back

A subscript

Front

How many atoms of oxygen are there in NaClO₄?

Back

1

Front

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

Back

3

Front

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

Back

5

Front

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

Back

3

Front

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

Back

9

Front

What does a coefficient in a chemical formula indicate?

Back

The number of molecules or moles of a substance.

Front

What is the difference between a subscript and a coefficient?

Back

A subscript indicates the number of atoms in a molecule, while a coefficient indicates the number of molecules.