Writing and Naming Chemical Formulas

What is the name for CO?

• Carbon Oxide

• Carbon (IV) Oxide

• Carbon Monoxide

• Carbon Dioxide

When naming ionic compounds, chemists use prefixes to indicate subscripts.

• True

• False

What is the name for SrO?

• strontium monoxide

• strontium oxide

• strontium oxygen (II)

• strontium (II) oxide

Name: PI₃

• phosphorous triiodide

• phosphorous iodide

• phosphorous (III) iodide

• monophosphide iodide

Iron(II) oxide would be written in formula form as

• Cannot be determined

• Fe₃O₂

• FeO

• Fe₂O₃

The correct name of Cu₃N₂ is

• copper (III) nitride

• tricopper dinitride

• copper nitride

• copper (II) nitride

Element or compound?

H₂O

• element

• molecular compound

• ionic compound

• none

Molecule or compound?

O₂

• Molecule

• Compound

• None

Which of the following is a compound?

• Cu

• H2

• C

• CO₂

What is the correct formula for dinitrogen tetroxide?

• N₃O₃

• N₄O₂

• N₂O₄

• (N₂)₂(O₄)₃