Chemistry
Write the names of the following compounds.
(a) (NH4)2SO4
(b) Ca(NO3)2
(c) FeS
(d) Na3PO4
(e) NH4OH
(f) CuCO3
(g) HgO
(h) ZnCl2
(i) ZnS
(j) H2S
Atomic Structure
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Answer
(a) Ammonium sulphate
(b) Calcium nitrate
(c) Iron sulphide
(d) Sodium phosphate
(e) Ammonium hydroxide
(f) Copper carbonate
(g) Mercuric oxide
(h) Zinc chloride
(i) Zinc sulphide
(j) Hydrogen sulphide
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Name one ion for each of the valencies -1, -2 and -3.
The valency of calcium is 2. Write the valencies of other radicals in the following compounds:
(a) CaO
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(c) CaCO3
(d) CaCl2
Write the molecular formula of:
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(b) Magnesium oxide
(c) Calcium hydroxide
(d) Hydrogen chloride
(e) Sulphuric acid
(f) Iron (II) sulphide
(g) Iron (III) sulphate
(h) Nitric acid
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(k) Magnesium nitride
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(a) sodium oxide
(b) sodium sulphate
(c) sodium carbonate
(d) sodium hydroxide
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