Unit 2 Test: Matter

What 3 things make up atoms?

• Protons, Neutrons, Electrons

• Cells, Molecules, Compounds

• Ions, Isotopes, Elements

• Quarks, Leptons, Bosons

NaCl is a:

• Compound

• Element

How many atoms of carbon are in this compound C₆H₈O₇?

• 6

• 7

• 8

• 9

How many atoms of hydrogen are in this compound C₆H₈O₇?

• 6

• 7

• 8

• 9

How many atoms of oxygen are in this compound C₆H₈O₇?

• 5

• 6

• 7

• 8

How many elements are in the following compound NaHCO₃?

• 3

• 4

• 5

• 6

True or False: Elements can have the same number of protons.

• True

• False

O₃ is a compound or an element?

• Compound

• Element

How many atoms of Nitrogen are in the compound N₂O?

• 1

• 2

• 3

• 4

How many atoms of Oxygen are in the compound N₂O?

• 1

• 2

• 3

• 4