Counting Atoms

How many oxygen atoms are in 6H₂O ?

• 1

• 2

• 6

Tags

NGSS.MS-PS1-1

How many chlorine atoms are in NaClO₄ ?

• 1

• 2

• 4

Tags

NGSS.MS-PS1-1

How many hydrogen atoms are in Pb(HCO₃)₄ ?

• 1

• 3

• 4

Tags

NGSS.MS-PS1-1

How many sulfur atoms are in H₂SO₄ ?

• 1

• 2

• 4

Tags

NGSS.MS-PS1-1

Consider 4MgI₂. The coefficient is the number of formula units of MgI₂.

• true

• false

The chemical formula is C₄H₁₀. How many hydrogen atoms are in one molecule of this?

• 1

• 4

• 10

Tags

NGSS.MS-PS1-1

There are three carbon atoms in one formula unit of K₂CO₃.

• true

• false

Tags

NGSS.MS-PS1-1

Mg(NO₃)₂ has five oxygen atoms per formula unit.

• true

• false

Tags

NGSS.MS-PS1-1

How many molecules are represented by 2C₆H₁₂O₆ ?

(a)  

Tags

NGSS.MS-PS1-1

How many atoms are in one molecule of C₁₂H₂₂O₁₁ ?

(a)  

Tags

NGSS.MS-PS1-1