Question

if x is an element with valency 2 what will be the formula of X with oxygen hydrogen and chlorine​

Answer 1

Answer:

1. XO
2. XH2
3. XCl2

Explanation:

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Answer 2

Answer:

The element x is calcium (2,8,2) here 2 is the valence electron.

Calcium with oxygen =CaO(calcium oxide,quick lime)

Now,hydrogen will be combined in the form of water and calcium will be in firm calcium oxide .Therefore ,the reaction takes place:—

Calcium oxide+ water= calcium hydroxide{Ca(OH)2, slaked lime}.

Calcium + chlorine=calcium chloride(CaCl2).