Counting Atoms & Molecules

How many Oxygen atoms are in 4H₂O(F₂Mg)₂?

• 6

• 8

• 2

• 4

Tags

NGSS.MS-PS1-1

How many elements are in C₆H₁₂O₆C?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many atoms are there TOTAL in:

H₂(SO₄)₃

• 10

• 12

• 7

• 17

• 15

Tags

NGSS.MS-PS1-1

How many Sodium (Na) are in 6Na₂Cl?

• 1

• 12

• 6

• 2

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

A subscript is the small number below a(n) ________ that tells the number of _______ of that element.

• element symbol; atoms
• atom; element symbol
• subscript; protons
• compound; elements

Tags

NGSS.MS-PS1-1

How many total atoms are in the compound C₂H₈O ?

• 11
• 2
• 8
• 1

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

HCl has how many atoms of each element?

• H=1, Cl=1

• H=2, Cl=2

• H=3, Cl=1

Tags

NGSS.MS-PS1-1

C₆H₁₂O₆ has how many total atoms?

• 6

• 12

• 24

Tags

NGSS.MS-PS1-1