CHEMICAL REACTIONS AND EQUATIONS

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Across
  1. 5. A chemical reaction where iron reacts with oxygen and moisture to form a reddish-brown flaky substance.
  2. 7. A type of double displacement reaction that forms an insoluble solid.
  3. 9. A reaction that releases heat.
  4. 10. A reaction where a compound breaks down into two or more substances.
  5. 11. A reaction between an acid and a base to form salt and water.
  6. 12. A process in which a substance gains oxygen,loses hydrogen or loses electrons.
  7. 14. A reaction that absorbs heat from the surroundings.
  8. 15. A reaction where a more reactive element replaces a less reactive one.
Down
  1. 1. A process in which a substance loses oxygen, gains hydrogen or gains electrons.
  2. 2. A reaction in which two or more substances combine to form a single product.
  3. 3. A decomposition reaction that occurs in the presence of light.
  4. 4. A decomposition reaction driven by electricity.
  5. 6. A reaction in which a substance reacts with oxygen, releasing heat and light.
  6. 8. A reaction involving both oxidation and reduction simultaneously.
  7. 13. A decomposition reaction that occurs on heating.