Counting Atoms Practice

How many atoms are in O₂ ?

• 1

• 2

• 3

Tags

NGSS.MS-PS1-1

How many atoms of each element are in NaCl?

• Na=1, Cl=1

• Na=2. Cl=2

• Na=1, Cl-2

Tags

NGSS.MS-PS1-1

C₆H₁₂O₆ has how many total atoms?

• 6

• 12

• 24

Tags

NGSS.MS-PS1-1

C₁₂H₂₂O₁₁ has how many carbon atoms?

• 1

• 11

• 12

• 45

Tags

NGSS.MS-PS1-1

How many elements are in this substance: CaCO₃

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1

How many elements are in this compound?... NaHCO₃

• 3

• 4

• 5

• 6

Tags

NGSS.MS-PS1-1

4 NaCl represents several molecules of table salt. How many atoms of chlorine are present in this example?

• 1

• 4

• 8

Tags

NGSS.MS-PS1-1

5 N₂O represents the laughing gas you might have at the dentist. How many atoms of nitrogen are present here?

• 1

• 2

• 7

• 10

Tags

NGSS.MS-PS1-1

We used baking soda before in a chemical reaction. How many molecules of it are represented here? 3 NaHCO₃

• 1

• 3

• 4

Tags

NGSS.MS-PS1-1

2 H₂O gives us life! How many total atoms are represented here?

• 2

• 4

• 6

Tags

NGSS.MS-PS1-1