Chemical Formulas

How many atoms of oxygen are there in this chemical formula?

• 3

• 6

• 1

• 2

How many total atoms are present in this compound?

• 4

• 2

• 6

• 1

What elements make up this compound?

• Cobalt and Helium

• Carbon and Hydrogen

• Copper and Helium

• Carbon and Helium

How many elements are present in one molecule of Calcium Carbonate?

• 3

• 2

• 1

• 4

How many total atoms are present in this chemical formula?

• 10

• 7

• 15

• 5

How many atoms of Hydrogen are present in the compound?

• 4

• 2

• 1

• 16

How many total atoms of oxygen are in this chemical formula?

• 15

• 5

• 2

• 10

What is the subscript in this chemical formula?

• 2

• 3

• 0

• 1

How many total atoms are present in this chemical formula?

• 1

• 2

• 3

• 4

How many total atoms of aluminum and oxygen are present in the chemical formula?

• AL-12 O-18

• AL-12 O-3

• AL-30 O-30

• AL-2 O-3