Balancing Equations & Counting Atoms

How many oxygen (O) atoms are in 2Ca(OH)₂?

• 4

• 2

• 1

• 5

Tags

NGSS.MS-PS1-1

How many hydrogen (H) atoms are in Fe₂(O₂H₂)₂?

• 2

• 8

• 4

• 6

Tags

NGSS.MS-PS1-1

How many total atoms are in 3P(O₂H)?

• 14

• 12

• 6

• 8

Tags

NGSS.MS-PS1-1

How many potassium (K) atoms are in 2 K₃Fe(CN)₆?

• 2

• 3

• 6

• 12

Tags

NGSS.MS-PS1-1

How many iron (Fe) atoms are in 2 K₃Fe(CN)₆?

• 2

• 1

• 3

• 12

Tags

NGSS.MS-PS1-1

How many carbon (C) atoms are in 4 CaCO₃?

• 4

• 3

• 12

• 7

Tags

NGSS.MS-PS1-1

How many carbon (C) atoms are in 2 K₃Fe(CN)₆?

• 2

• 6

• 12

• 1

Tags

NGSS.MS-PS1-1

How many oxygen (O) atoms are in 2Al(OH)₃?

• 1

• 3

• 2

• 6

Tags

NGSS.MS-PS1-1

How many carbon (C) atoms are in 3 C₃H₈?

• 3

• 6

• 9

• 8

Tags

NGSS.MS-PS1-1

How many hydrogen (H) atoms are in 3C₆H₁₂O₆?

• 3

• 12

• 24

• 36

Tags

NGSS.MS-PS1-1