Chemistry 2
- Created by: Victoria.1
- Created on: 15-05-16 15:55
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- Water
- Hard Water
- Contains dissolved magnesium and calcium.
- Temporary Hard Water.
- Hardness can be removed.
- Permanent hard water.
- Hardness CAN NOT be removed.
- Temporary Hard Water.
- Testing For Hard Water.
- 1.Add soap solution. 2.when shaken if not a lot of lather forms it means you have ard water.
- Softening Hard Water.
- 1. Boil to remove hardness as fur/ lime scale.
- 2. Add sodium chloride (washing soda)
- 3. Pass water through in exchange.
- Advantages
- 1. Tastes better.
- 2. Lowers risk of heart disease.
- 3. Strengthens bones and teeth.
- 2. Lowers risk of heart disease.
- 1. Tastes better.
- Disadvantages.
- 1.Clods/ damages water pipes.
- 2.Uses more soap/ detergent.
- 1.Clods/ damages water pipes.
- Water Treatment.
- Water comes lakes/ rivers which means it need to be treated for safe domestic use.s fro rivers
- 1. Sedimentation.
- Large particles settle.
- 2. Filteration.
- Passed through filters to remove small particles.
- 3. Chlorination.
- Untitled
- Contains dissolved magnesium and calcium.
- Solubility.
- Amount od solute(solid) which will dissolve in 100g of water.
- In a graph you should see that the solubility usually increases with the temperature
- Amount od solute(solid) which will dissolve in 100g of water.
- Desliation
- 1. Used to remove salt from sea water.
- 2. Uses a lot of energy.
- 3. Expensive process.
- Uses Of Water.
- 1. Drinking.
- 2. Growing food.
- 3.Industrial produce.
- 4.Wahing.
- Hard Water
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