Counting Atoms Practice

How many atoms of Hydrogen are in H₂O?

• 1

• 2

• 3

• more than 3

Tags

NGSS.MS-PS1-1

How many atoms are there TOTAL in H₂SO₄ ?

• 6

• 5

• 7

• 3

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

What does the subscript in a chemical formula tell you?

• How many molecules are present

• How many atoms are present

• How many elements are present

• How many formula units are present

Tags

NGSS.MS-PS1-1

How many atoms of Hydrogen are in this compound?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many atoms of Iron are in this compound?

• 1

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1

How many atoms of hydrogen are in:

C₆H₁₂O₆

• 6

• 12

• 18

• 2

Tags

NGSS.MS-PS1-1

When there is no subscript after an element's symbol, it means there are how many atoms of that element?

• 0

• 1

• 2

• can't tell

Tags

NGSS.MS-PS1-1

How many atoms are in the formula?

NaOH

• 4

• 3

• 2

• 1

Tags

NGSS.MS-PS1-1

How many atoms are there in this formula?

H₂COCH₂

• 5

• 4

• 6

• 7

• 3

Tags

NGSS.MS-PS1-1