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Gasses and oxides (Burning elements in oxygen (Barium 2+ (Green), Lithium…

- - - - CaCO3 --> CaO + CO2
    - - CaO + H2O --> Ca(OH)2
    - - Limestone powder + Clay powder ------------------> Cement
      - Oxidising acidic lake
      - Cement + Sand + Water + Crushed Rock --------------> Concrete
  - - - The higher the element oxide is placed on the reactivity series, harder to thermal decompose.
- - - - Using copper turnings as it oxidises and removes oxygen from air sample.
- - - - Hydrochloric acid + magnesium stripe --> Magnesium chloride + hydrogen gas
  - - - Hydrogen peroxide --> Water + Oxygen (Manganese dioxide acts as a catalyst for the decomposition)
  - - - Calcium carbonate --> Calcium oxide + Carbon dioxide
  - - - Hydrochloric acid + Bleach --> Chlorine gas + Sodium chloride + water
  - - - Ammonium + Sodium hydroxide --> Ammonia + Sodium chloride + water