chemical and reaction equations

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Across
  1. 3. The color of ManganeseDioxide is…
  2. 7. the reaction in which oxidation and reduction occur simultaneously is called…
  3. 9. the reaction in which heat is released is called…
  4. 12. A decomposition reaction which requires heat is called?
  5. 14. the color of hydrated ferrous sulphate is?
  6. 15. What is the highly reactive metal in the reactive series?
  7. 16. The chemical substance which are formed due to chemical reaction is called…
  8. 17. what makes food undesirable?
Down
  1. 1. A chemical equation where the number of atoms of each element is equal on both sides is…
  2. 2. what Produces dazzling white flame when burnt?
  3. 4. Decomposition which requires electricity is called…
  4. 5. What is the least reactive metal in the reactivity series?
  5. 6. What is the test called to check for the presence of hydrogen gas?
  6. 8. The color of lead oxide is…
  7. 10. which compound reacts with Co2 to form calcium carbonate?
  8. 11. the color of lead nitrate is…
  9. 13. substances which acts against oxidation is called…