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Questions 4.4

  1. Complete the equations numbered (b), (c), (e), (f), (h), (i) and (k).

  2. Name the salts produced in (a) to (f) and (h) to (i).

  3. From the equations, identify four methods to prepare salts.


NB:Use the following guide to indicate the correct state symbols.

  1. PbSO4, BaSO4, AgCl, and all carbonates except of Na+, K+, NH4+ are insoluble.

  2. All oxides and hydroxides of metals, except of Na+, K+, and NH4+ are insoluble.

  3. State symbol is (aq) for soluble and (s) for insoluble substances.



Answers to Questions 4.4

    1. Magnesium chloride
    2. Zinc sulphate
    3. Magnesium sulphate
    4. Copper (II) sulphate
    5. Sodium nitrate
    6. Magnesium nitrate
    7. Copper (II) chloride
    8. Sodium chloride
  3. Reacting a metal with an acid (dilute)
    Reacting a metal carbonate or hydrogencarbonate with an acid
    Reacting a metal oxide or hydroxide with an acid.
    Reacting a metal (an element) with an element (Direct Combination of elements)