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Chemistry - Coggle Diagram

- - - - A more reactive metal will displace a less reactive metal from a compound.
        
        Aluminium + iron oxide = iron + aluminium oxide
    - - A more reactive metal will displace a less reactive metal from a solution of one of its salts.
        
        Magnesium + Copper (II) sulfate = Copper + Magnesium Sulfate
        
        grey magnesium turns brown
        
        blue copper sulfate turns colourless
  - - - Oiling/Greasing
      - Painting
      - Galvanising (Zinc)/Sacrificial protection
        
        coated in a thin layer of zinc.
      - Coat with a layer of plastic
  - - - oxidation
        
        loss of electrons
        
        gain of oxygen
        
        the one that gains oxygen is called reducing agent
      - reduction
        
        lose of oxygen
        
        gain of electrons
        
        one that gains oxygen is also called oxidising agent
- - - - 1-3 strong acid
      - 4-6 weak acid
    - - 8-10 weak alkali
      - 12-14 strong alkali
  - - - acid
        
        red
      - alkali
        
        blue
    - - acid
        
        colorless
      - alkali
        
        pink
    - - acid
        
        red
      - alkali
        
        yellow
- - - - Calculating the percentage of oxygen in air
        
        Oxygen in air gas syringes and copper method
        
        Oxygen in air candle and cylinder method
        
        Reaction of oxygen with phosphorus
    - - Greenhouse Gas
        
        Carbon dioxide CO2
        
        Burning fossil fuels, industry or transport.
        
        Deforestation from burning.
        
        Methane CH4
        
        Agriculture cattle, rice.
        
        The extraction of natural gas.
        
        Ozone O3
        
        Sulphur Dioxide SO2
        
        Water H2O
      - Impact
        
        Glaciers and polar ice melting
        
        Sea levels rising
        
        Rainfall/weather patterns changing
        
        Habitats changing
  - - - Reacts with oxygen and transfer energy to the surrounding(light and heat)
    - - substance that releases thermal energy when it is burnt
        
        coal,petrol
    - - scientific word for burning
    - - complete combustion
        
        complete hydrocarbon combustion
        
        hydrocarbon + oxygen = water vapor + carbon dioxide
        
        Compound made with only carbon and hydrogen
        
        methane
        
        CH4
        
        benzene
        
        C6H6
      - incomplete combustion
        
        incomplete hydrocarbon combustion
        
        hydrocarbon + oxygen = water + carbon monoxide + carbon
        
        carbon monoxide is produced instead of carbon dioxide