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Reactions of acids Typeit
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Acids can form salts in the following reactions:
- acid + metal → salt +
- acid + metal hydroxide or metal → salt + water
- acid + metal carbonate → salt + water + carbon dioxide
The salt formed depends on the positive ions present and the acid used, e.g. sulfuric acid forms .
Soluble salts can be formed by heating an acid and adding an solid metal, alkali or base until no more reacts. The mixture should then be to remove excess solid and heated to remove the water so that solid, dry form.
A reaction between an acid and an alkali can be summarised as H⁺(aq) + OH⁻(aq) → (l). Acids release H+ ions in solution, whereas alkali solutions always contain ions. The acidity or alkalinity of a solution can be measured using a pH meter with a scale from 0 to , where is considered neutral.