Writing Formulas

Ionic Compounds

100

calcium oxide

What is CaO?

200

silver chloride

What is AgCl?

300

zinc hydroxide

What is Zn(OH)₂?

400

chromium (II) fluoride

What is CrF₂?

500

iron (III) nitride

What is FeN?

Molecular Compounds

100

carbon dioxide

What is CO₂?

200

hydrogen trioxide

What is HO₃?

300

methane

What is CH₄?

400

diphospourous trioxide

What is P₂O₃?

500

nonasulfur heptachloride

What is S₉C₇?

Acids

100

hydronitric acid

What is H₃N?

200

hydrosulfuric acid

What is H₂S?

300

carbonic acid

What is H₂CO₃?

400

phosphoric acid

What is H₃PO₄?

500

sulfurous acid

What is H₂SO₃?

Hydrates

100

magnesium oxide trihydrate

What is MgO^.3H₂O?

200

sodium chlorate heptahydrate

What is NaClO₃^.7H₂O?

300

iron (II) sulfate tetrahydrate

What is FeSO₄^.4H₂O?

400

copper (I) sulfate hexahydrate

What is Cu₂SO₄^.6H₂O?

500

tin (IV) chlorite decahydrate

What is Sn(ClO₂)₄^.10H₂O?

Ions

100

rubidium

What is Rb⁺?

200

platinum (IV)

What is Pt⁴⁺?

300

selenide

What is Se^2-?

400

permangante

What is MnO₄^-?

500

ammonium

What is NH₄⁺?