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Chemistry Mind Map, image, image - Coggle Diagram

- - - - Formation of a Precipitate
        
        Colour Change
        
        Temperature change
        
        Production Of Light
        
        Change In Smell Or Taste
  - - - Galvanization or galvanizing is the process of applying a protective zinc coating to steel or iron, to prevent rusting.
        
        What was the most dramatic change you observed?
        
        Chemical reactions are associated with energy changes, which are detected by heat loss or gain. What evidence is there of energy changes in Tests 3 and 4?
        
        Can we reverse chemical changes?
  - - - • The rusting of iron.
      - • Combustion (burning) of wood.
      - • The metabolism of food in the body.
      - • Mixing an acid and a base, such as hydrochloric acid (HCl) and sodium hydroxide (NaOH)
      - • Cooking an egg.
- - - - Photosynthesis.
      - Melting ice.
      - Evaporating liquid water.
      - Nucleosynthesis of elements heavier than nickel in stars.
      - Cracking alkanes.
      - Dissolving ammonium chloride in water.