Counting Atoms in Formulas (Basic)

How many Oxygen are in H₂O?

• 1
• 2
• 0
• 4

Tags

NGSS.MS-PS1-1

How many elements are in C₆H₁₂O₆?

• 1
• 2
• 3
• 4

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 Hydrogen are in this compound

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

A pure substance that cannot be broken down into simpler substances.

• element
• compound
• molecule
• carbon dioxide

How many total atoms are in the element Carbon in this compound?
H₂C₃O₄N₅

• 2
• 3
• 4
• 5

Tags

NGSS.MS-PS1-1

If there is no subscript, there is/are ______ atom(s) of that element.

• 0
• 2
• only 1
• 1 million

Tags

NGSS.MS-PS1-1

How many elements are in the following?
C₂H₈O

• 2
• 1
• 3
• 0

Tags

NGSS.MS-PS1-1

Carbon is a(n)...

• element
• compound
• number
• food

Tags

NGSS.MS-PS1-1

What elements are in this compound?

• Nitrogen

• Carbon

• Oxygen

• Iron

• Neon

Tags

NGSS.MS-PS1-1