Give the formulae of the compounds formed from the following sets of elements(a) Calcium and fluorine(b)Hydrogen and sulphur(c) Nitrogen and hydrogen (d) Carbon and chlorine (e) Sodium and oxygen (f) Carbon andOxygen
Question
Give the formulae of the compounds formed from the following sets of elements(a) Calcium and fluorine(b)Hydrogen and sulphur(c) Nitrogen and hydrogen (d) Carbon and chlorine (e) Sodium and oxygen (f) Carbon andOxygen
Solution
(a) Calcium and fluorine: The compound formed between calcium and fluorine is calcium fluoride. The formula for calcium fluoride is CaF2.
(b) Hydrogen and sulphur: The compound formed between hydrogen and sulphur is hydrogen sulphide. The formula for hydrogen sulphide is H2S.
(c) Nitrogen and hydrogen: The compound formed between nitrogen and hydrogen is ammonia. The formula for ammonia is NH3.
(d) Carbon and chlorine: The compound formed between carbon and chlorine is carbon tetrachloride. The formula for carbon tetrachloride is CCl4.
(e) Sodium and oxygen: The compound formed between sodium and oxygen is sodium oxide. The formula for sodium oxide is Na2O.
(f) Carbon and oxygen: The compound formed between carbon and oxygen can have different formulas depending on the oxidation state of carbon. One common compound is carbon dioxide, which has the formula CO2. Another compound is carbon monoxide, which has the formula CO.
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