Soluble Salts
Chemistry: AQA GCSE Higher, topic 4.3.4
Soluble Salts
Soluble salts are salts which dissolve in water.
Making soluble salts
- We can produce soluble salts through a reaction between acids and solid, insoluble substances such as pure metals, metal oxides, metal hydroxides, or metal carbonates.
E.g. blue copper sulfate
- Blue copper sulfate crystals are produced by adding black copper oxide to sulfuric acid:
- CuO(s) + H2SO4(aq) → CuSO4(aq) + H2O(l)
Test yourself on Soluble Salts
What do we call salts that dissolve in water?
What are the products of the reaction between copper oxide and sulfuric acid?
What must be reacted together to produce a soluble salt?
What colour is copper oxide?
What colour are copper sulfate crystals?