Understanding Simple Compound Formulas

What is the correct formula for sodium chloride?

• Nacl

• NaC

• NAC

• NaCl

Which prefix indicates the presence of two oxygen atoms in a compound?

• Tetra-

• Mono-

• Di-

• Tri-

How is carbon monoxide different from carbon dioxide in terms of oxygen atoms?

• Carbon monoxide has no oxygen atoms.

• Carbon monoxide has one oxygen atom.

• Carbon monoxide has two oxygen atoms.

• Carbon monoxide has three oxygen atoms.

What is the formula for nitrogen trioxide?

• N3O

• NO2

• N2O3

• NO3

What prefix is used for a compound with four atoms attached?

• Tetra-

• Di-

• Mono-

• Tri-