Double salts
Chemistry · Grade 10 · about 40 minutes
A double salt crystallises with two different cations (or two salts) in a definite ratio, such as potash alum.
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- 6 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
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Other lessons in this sub-strand
- Salts and solubility
- Preparing salts and their behaviour in air
- A salt is an ionic product
- Naming salts from the parent acid
- Normal salts
- Acid salts
- Basic salts
- Double salts
- Hydrated and anhydrous salts
- Water of crystallisation
- Salts that always dissolve
- Chloride and sulphate exceptions
- Most carbonates and hydroxides do not dissolve
- Choosing how to make a salt
- Preparing a salt from acid and alkali
- Preparing a salt from acid and an insoluble base
- Preparing a salt from acid and a carbonate
- Preparing a salt from acid and a metal
- When the metal will not make the salt
- Precipitation of insoluble salts
- Ionic equations for precipitation
- Filtering, washing and drying a precipitate
- Crystallising a soluble salt
- Efflorescence
- Deliquescence and hygroscopy
- Magadi soda as a salt
- Kenyan table salt
- Salts in food, farm, clinic and industry
- Safety when preparing salts
- Putting salts together