Counting Atoms and Elements Quiz

How many elements are in the formula H₂O?

• 1

• 2

• 3

• 0

Tags

NGSS.MS-PS1-1

How many atoms are in one molecule of CO₂?

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1

Which formula contains 2 sodium (Na) atoms?

• NaCl

• Na₂SO₄

• NaOH

• NaNO₃

Tags

NGSS.MS-PS1-1

How many oxygen (O) atoms are in C₆H₁₂O₆?

• 6

• 12

• 24

• 18

Tags

NGSS.MS-PS1-1

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

• 3

• 4

• 5

• 6

Tags

NGSS.MS-PS1-1

How many elements are in NaHCO₃?

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1

How many total atoms are in Al₂(SO₄)₃?

• 7

• 12

• 17

• 19

Tags

NGSS.MS-PS1-1

How many hydrogen and oxygen atoms are in 2H₂O?

• 2 H, 1 O

• 4 H, 2 O

• 2 H, 2 O

• 6 H, 3 O

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

How many atoms of each element are in Mg₃(PO₄)₂?

• 3 Mg, 2 P, 8 O

• 1 Mg, 2 P, 4 O

• 3 Mg, 1 P, 4 O

• 2 Mg, 2 P, 6 O

Tags

NGSS.MS-PS1-1

The formula NH₃ contains how many atoms total?

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1