which of the following represents a correct chemical formula?
(a)CaCl
(b)CaSO4
(c)NaSO4
(d)NaS
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Answer:
CaCl is a correct formula
Explanation:
because it is calcium chloride
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(a) CaCl → Calcium Chloride
(b) CaSO4 → calcium sulphate dihydrate
(c) NaSO4 → Sodium Sulphate
(d) NaS → This is actually incorrect, it should be Na2S. Sodium Sulphide
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