Counting Atoms

What does the subscript in a chemical formula tell you? (a)  

• How many molecules are present
• How many atoms are present
• How many elements are present
• How many neutrons are present

Tags

NGSS.MS-PS1-1

In a chemical equation, the _________ tells the number of molecules participating in the reaction.

• subscript

• coefficient

• 6

• 1

• 12

Tags

NGSS.MS-PS1-1

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

• Iron, Oxygen

• Francium, Europium, Oxygen

• Ferrium, Oxygen

• Berylium, Oxygen

Tags

NGSS.MS-PS1-1

• 2

• 4

• 3

Tags

NGSS.MS-PS1-1

• Element

• Compound

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NGSS.MS-PS1-1

How many atoms are in a molecule of CaSO₄?

• 4

• 6

• 8

• 10

Tags

NGSS.MS-PS1-1

In the formula 3N₂O, the 2 next to the Nitrogen atom is a ______________.

• coefficient

• subscript

How many atoms of hydrogen (H) are there in H₂O?

• 2

• 1

• 3

• 4

Tags

NGSS.MS-PS1-1