Chemical changes GCSE Chemistry
- Created by: AlanaHarry
- Created on: 03-02-19 14:41
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- Chemical changes
- displacement involves one metal 'kicking' another one out of a compound
- for example... iron + copper sulphate = iron sulphate + copper
- Acids release H+ ions
- Alkalis release OH- ions
- A redox reaction is a reaction with oxidation and reduction
- Oxidation is loss of electrons or gain of oxygen
- Reduction is gain of electrons or loss of oxygen
- A strong acid is where all particles dissociate
- A weak acid doesn't fully ionise in water
- acid + alkali = salt + water
- displacement involves one metal 'kicking' another one out of a compound
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