Counting Atoms

Front

What is the chemical formula for Aluminum Oxide?

Back

Al₂O₃

Front

How many atoms of Aluminum are in one formula unit of Al₂O₃?

Back

2

Front

What does the subscript in a chemical formula represent?

Back

The number of atoms of the element in one molecule of the compound.

Front

What is the chemical formula for Ethanol?

Back

C₂H₈O

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

How many Hydrogen atoms are in one molecule of water (H₂O)?

Back

2

Front

How many Hydrogen atoms are in 4 molecules of water (4H₂O)?

Back

8

Front

What is the chemical formula for Magnesium Chloride?

Back

MgCl₂

Front

How many Magnesium atoms are in 10 formula units of MgCl₂?

Back

10

Front

What is the chemical formula for Aluminum Sulfate?

Back

Al₂(SO₄)₃