Ch 6 Physical & Chemical Changes

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Across
  1. 3. temporary changes in physical properties
  2. 5. sugar turns black on heating and gets____
  3. 6. metal solutions to prevent rusting
  4. 7. corrosion of iron
  5. 8. reaction which has 2 reactants and 1 product
  6. 10. reaction of an element with a compound
Down
  1. 1. a process to obtain pure crystals of any compound.
  2. 2. coating of Zinc over iron metal objects.
  3. 4. an insoluble solid formed in a chemical reaction.
  4. 9. colour of Copper sulphate solution