Question

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Answer 1

Answer:

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Convert the following word equations into balanced chemical equations :

1. Potassium + Oxygen → Potassium oxide.

2. Sodium + Oxygen → Sodium oxide.

3. Calcium + Oxygen → Calcium oxide.

4. Aluminium + Oxygen → Aluminium oxide.

5. Zinc + Oxygen → Zinc oxide. .

6. Iron + Oxygen → Iron(III) oxide.

7. Lead + Oxygen → Lead oxide.

8. Carbon + Oxygen → Carbon dioxide.

9. Sulphur + Oxygen → Sulphur dioxide.

10. Nitrogen + Oxygen → Nitrogen monoxide.

11. Phosphorus + Oxygen → Phosphorous pentaoxide.

12. Sodium + Chlorine → Sodium chloride.

13. Iron + Chlorine → Iron (III) Chloride.

14. Nitrogen + Chlorine → Nitrogen trichloride.

15. Hydrogen + Chlorine → Hydrogen chloride.

16. Zinc + Sulphur → Zinc sulphide.

17. Iron + Sulphur → Iron(II) sulphide.

18. Hydrogen + Sulphur→ Hydrogen sulphide.

19. Nitrogen monoxide + Oxygen → Nitrogen dioxide.

20. Ammonia + Hydrogen chloride → Ammonium chloride.

21. Carbon dioxide + water → Carbonic acid.

22. Sulphur dioxide + Water → Sulphurous acid.

23. Sulphur trioxide + Water → Sulphuric acid.

Decomposition reactions

24. Copper carbonate → Copper oxide + Carbon dioxide

25. Mercuric oxide → Mercury + Oxygen

26. Copper hydroxide → Copper oxide + Water

27. Potassium nitrate → Potassium nitrite + Oxygen

28. Sodium nitrate → Sodium nitrite + oxygen

29. Lead nitrate → Lead oxide + Nitrogen dioxide + Oxygen

30. Ammonium chloride → Ammonia + Hydrogen chloride

31. Ammonium nitrate → Dinitrogen oxide + water

32. Ammonium nitrite → Nitrogen + water

33. Silver nitrate → Silver + Oxygen + nitrogen dioxide

34. Water → Hydrogen + Oxygen

35. Sodium chloride → Sodium + chlorine.

Displacement reactions:

1. Chlorine + potassium Iodide →Potassium chloride + Iodine

2. Zinc + Copper sulphate → Zinc sulphate + Copper.

3. Iron+ Copper sulphate → Ferrous sulphate + Copper.

4. Potassium + water → Potassium hydroxide + Hydrogen

5. Calcium + water → Calcium hydroxide + Hydrogen

6. Magnesium + Steam → Magnesium oxide + Hydrogen

7. Sodium + Sulphuric acid → Sodium sulphate + Hydrogen

8. Zinc + Sulphuric acid → Zinc sulphate + Hydrogen

9. Iron + Hydrochloric acid → Iron (II) sulphate + Hydrogen

Double decomposition reaction

1. Barium chloride + Sodium sulphate → Sodium chloride + Barium sulphate↓

2. Lead nitrate + Sodium chloride → Lead chloride↓ + Sodium nitrate

3. Copper sulfate + Sodium hydroxide → Sodium sulphate + Copper hydroxide↓

4. Iron (III)chloride + Sodium hydroxide →Iron(III)hydroxide↓ + Sodium chloride

5. Hydrochloric acid + Sodium hydroxide → Sodium chloride + water

6. Copper oxide + Dil. Hydrochloric acid → Copper chloride + water

7. Sodium chloride + Silver nitrate → Sodium nitrate + Silver chloride↓