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5. Write the chemical formulae of the following chemical compounds.
(i)
Sodium sulphate ..........
(ii) Potassium nitrate.....
(ii) Copper(i) oxide.......
(iv) Sulphuric acid........
(v) Zinc sulphate.........
(vi) Aluminium chloride......
(vii) Calcium nitride.....
(viii) Hydrogen sulphide......
(ix) Iron(iii) oxide....
(x) Manganese(iv) oxide.....
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