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Questions 3.5b

  1. Complete the following word equations
    1. Copper (II) oxide + Hydrochloric acid
    2. Zinc oxide + Sulphuric (VI) acid
    3. Magnesium oxide + Nitric (V) acid
    4. Lead (II) oxide + Nitric (V) acid
    5. Calcium oxide + Hydrochloric acid
    6. Sodium oxide + Sulphuric (VI) acid
    7. Copper (II) hydroxide + Nitric (V) acid
    8. Zinc hydroxide + Nitric (V) acid
    9. Magnesium hydroxide + Hydrochloric acid
    10. Calcium hydroxide + Nitric (V) acid
  2. From the table of Common Chemistry Laboratory Chemicals, under copper and its compounds, state what would be observed when the solutions obtained in 1(a) and (g) are crystallized.


Answers to Questions 3.5b

    1. (a) Copper (II) oxide + Hydrochloric acid Copper (II) chloride + Water
    2. Zinc oxide + Sulphuric (VI) acid Zinc sulphate + Water
    3. Magnesium oxide + Nitric (V) acid Magnesium nitrate + Water
    4. Lead (II) oxide + Nitric (V) acid Lead (II) nitrate + Water
    5. Calcium oxide + Hydrochloric acid Calcium chloride + Water
    6. Sodium oxide + Sulphuric (VI) acid Sodium sulphate + Water
    7. Copper (II) hydroxide + Nitric (V) acid Copper (II) nitrate + Water
    8. Zinc hydroxide + Nitric (V) acid Zinc nitrate + Water
    9. Magnesium hydroxide + Hydrochloric acid Magnesium chloride + Water
    10. Calcium hydroxide + Nitric (V) acid Calcium nitrate + Water
    1. Green crystals
    2. Deep blue crystals