PHYSICAL AND CHEMICAL CHANGES

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Across
  1. 3. bubbles that appear during the evolution of gas
  2. 5. this is a chemical reaction that involves addition of hydrogen or removal of oxygen from a substance
  3. 7. the process of depositing a layer of zinc on iron
  4. 9. this is a chemical reaction that involves addition of oxygen or removal of hydrogen from a substance
  5. 10. original substances participating in a chemical reaction
Down
  1. 1. the rusting of iron occurs due to water and ________
  2. 2. the process by which we obtain crystals of common substances from a solution in water
  3. 4. a solid in which atoms are arranged in a regular pattern
  4. 6. a solid can be separated from a solution of the solid by __________ and crystallization
  5. 8. new substances that are formed