Metal Oxides, Metal Hydroxides & Ammonia

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Oxides and Hydroxides

Metal Oxides and Metal Hydroxides are BASES,

All Metal Oxides and Metal Hydroxides react with acids to form salt and water,

Reactions where metal oxide/metal hydroxide reacts with acids are neutralisation reactions,

A way to remember the equation for metal oxides/hydroxides reacting with acids is to remember that the product of a reaction like this is always the base at the front with the type of acid after it, plus water.

Some examples:

-HydroCHLORIC Acid + COPPER Oxide --> COPPER CHLORIDE + Water

-HydroCHLORIC Acid + SODIUM Hydroxide --> SODIUM CHLORIDE + Water

-SULFURIC Acid + ZINC Oxide --> ZINC SULFATE + Water

-SULFURIC Acid + CALCIUM Hydroxide --> CALCIUM SULFATE + Water

-NITRIC Acid + MAGNESIUM Oxide --> MAGNESIUM NITRATE + Water

-NITRIC Acid + POTASSIUM Hydroxide --> POTASSIUM NITRATE + Water

Ammonia

-Ammonia dissolves in water to make an alkaline solution,

-Then, when it reacts with nitric acid it produces a neutral salt: ammonium nitrate,

-NO WATER is produced as a product in this experiment, ONLY the ammonium nitrate salt,

-Ammonium Nitrate is a good fertiliser because it has nitrogen from two different sources, the ammonia AND the nitric acid.

-Plants need this nitrogen to make proteins.