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Acids and Alkalis

Neutralisation and Salts.

An acid can be neutralised by an alkali, a base or a carbonate.
Neutralisation reactions are exothermic.

When an acid is neutralised the hydrogen ion of the acid
is replaced by a positive ion from the alkali, base or carbonate.
The ionic compound which is formed is called a salt
(see also ionic equations).
Some salts are used to make fireworks.

A salt can be soluble (it dissolves in water)
or insoluble (it does not dissolve in water).

Click on the links below for examples of

1) Salts made from an acid with a metal.

2) Soluble salts made from an acid and an alkali.

3) Salts made from an acid and a base.

4) Salts made from an acid and a carbonate.

5) Insoluble salts made from an acid or alkali or another salt.

6) Reaction of the elements.

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