Write the molecular formulae for the oxides nd sulphides of the following elements;
.Sodium
.Calcium
.Hydrogen
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Answer:
(a) Sodium oxide Na2O
Sodium sulphide Na2S
(b) Calcium oxide CaO
Calcium sulphide CaS
(c) Hydrogen oxide H2O
Hydrogen sulphide H2S
Explanation:
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- Sodium oxide - Na2O
- Sodium Sulphide - Na2S
- Calcium oxide - CaO
- Calcium Sulphide - CaS
- Hydrogen Oxide - H2O
- Hydrogen Sulphide - H2S
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