Counting Atoms Practice

Front

How many Carbon atoms are in 2Na₂CO₃?

Back

2

Front

How many Sodium atoms are in 6NaCl?

Back

6

Front

How many atoms of Carbon are in the compound C₂H₈O?

Back

2

Front

How many TOTAL atoms are in the compound Mg(NO₃)₂?

Back

9

Front

How many Hydrogen atoms are in 4H₂O?

Back

8

Front

What is the formula to calculate the total number of atoms in a compound?

Back

Add the number of each type of atom in the formula.

Front

What does the subscript in a chemical formula indicate?

Back

The number of atoms of the element in the molecule.

Front

In the compound C₃H₈, how many Hydrogen atoms are present?

Back

8

Front

What is the total number of atoms in the compound Ca(OH)₂?

Back

5

Front

How many Oxygen atoms are in 2H₂O?

Back

2