C5: Chemicals of the Natural Environment
- Created by: Abi Lewis
- Created on: 06-06-13 11:29
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- C5: Chemicals of the Natural Environment
- Hydrosphere
- Water
- Ionic compounds (Salt)
- If it gains an atom it becaomes negatively charged
- If it loses an atom it becomes positively charged
- Litosphere
- Crust and Mantle
- Silcate rocks (Oxygen and Silicon)
- Silicon dioxide
- Amethyst
- Diamond
- Silicon dioxide
- Atmosphere
- 78% Nitrogen
- 21% Oxygen
- 1% Argon
- Electrolysis
- Positively charged ions move towards the negative electrode
- Negatively charged ions move towards the positive eletrode
- Precipitation
- Ag+(aq) + Cl-(aq) ? AgCl(s)
- Ba2+(aq) + SO42-(aq) ? BaSO4(s)
- A solid produced in a liquid is a precipitation reaction
- Calculating relative formula mass
- Fe2O3 contains 2Fe
- 160 tonnes of Fe2O3 contains 112 tonnes of Fe
- 5 tonnes of Fe2O3 contains 3.5 tonnes of Fe
- 5x112/160
- Bonding
- Covalent
- Water
- Methane
- Hydrogen chloride
- Strong, needs a lot of energy to break them
- Ionic
- Sodium chloride
- Calcium oxide
- Covalent
- Hydrosphere
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