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Calcium forms the following salts : Ca...

Calcium forms the following salts :
Calcium oxide -CaO, Calcium hydroxide-`Ca(OH)_(2)` and Calcium sulphate-`CaSO_(4)` Barium belongs to same group. Write the formulae of its oxide, hydroxide and sulphate.

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In all the compounds of calcium (Ca) listed, the valency of the metal is +2. Now, the element barium (Ba) belongs to the same group as calcium. It must be also divalent in its compounds. The formulae of the respective compounds of the element are :
`underset(("Barium oxide"))(BaO)" "underset(("Barium hydroxide"))(Ba(OH)_(2))" "underset(("Barium sulphate"))(BaSO_(4))`
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