Counting Atoms in a Compound

How many Hydrogen atoms are in 4H₂O?

• 6

• 8

• 2

• 4

Tags

NGSS.MS-PS1-1

How many Magnesium atoms are in 10MgCl₂?

• 10

• 5

• 20

Tags

NGSS.MS-PS1-1

How many Nitrogen atoms are in the in H₂C₃O₄N₅?

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1

Which is the correct formula for:
 three hydrogen (H)
one sulfur (S)
four oxygen (O)

• H₃SO₄
• HSO₄
• H₄S₃O
• H₂O

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

How many elements are in... N₂O ?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Caffeine is represented here: C₈H₁₀N₄O_{2 ...} How many atoms are present?

• 4

• 18

• 24

• 32

Tags

NGSS.MS-PS1-1

C₈H₁₀N₄O₂ has how many elements?

• 24

• 4

• 1

Tags

NGSS.MS-PS1-1

How many total atoms are in this compound?
H₂C₃O₄N₅

• 5
• 14
• 15
• 19

Tags

NGSS.MS-PS1-1