Caffeine

Calcium

Calcium acetate

Calcium carbide

Calcium carbonate

Calcium chloride

Calcium hydroxide

Calcium nitrate

Calcium oxide

Calcium phosphate

Calcium sulfate

Camphor

Candles

Carbon

Carbon dioxide gas

Casein

Catalase

Charcoal

Chloroform

Chromium chloride

Chromium sulfate

Chromatography solvent

Citric acid

Cobalt

Cobalt(ous) chloride

Cobalt(ous) nitrate

Cobalt(ous) sulfate

Copper

Corn oil

Corn syrup

Cream of tartar

Cupric acetate  [Copper (II) carbonate]

Cupric carbonate  [Copper (II) carbonate]

Cupric chloride  [Copper (II) chloride]

Cupric nitrate

Cupric oxide

Cupric sulfate

Cuprous chloride

Cuprous nitrate

Cuprous sulfate

Cuprous oxide

Cyclohexane

Cyclohexanol

Cyclohexene