Chemistry Chapter 6 - Part 1
- Created by: elliebaxter
- Created on: 26-01-17 15:47
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- Chemistry Chapter 6 - Part 1
- Acids and alkalis
- Bases = metal oxides and metal hydroxides that neutralise acids
- Acid + water = H+
- Alkaline + water = OH-
- pH scale - red=0=acid purple =14=alkali
- Alkali = soluble hydroxides
- Making salts
- acid + metal = a salt + hydrogen
- Evaporate water from salt until it crystalises
- acid + base = a salt + water (neutralising)
- hydrochloric acid - chloride
- Sulphuric acid - sulphate
- Nitric acid - nitates
- Sulphuric acid - sulphate
- eg. sulphuric acid + iron = iron sulphate + water
- hydrochloric acid - chloride
- acid + metal = a salt + hydrogen
- Neutralisationprecipitation and salts
- acid + alkali = a salt + water
- Ammonia salts
- acid + ammonium (alkali) = a salt + water
- Add ammonia to acid and crystallise the ammonium salt from the solution
- Ammonium nitrate used as fertilliser
- Making insoluble salts
- Add together two solutions containing soluble salts and filter off salt from solution
- Salt = precipitation
- Used to remove pollutants from wastewater
- Acids and alkalis
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