Question

Calcium
Chloride
molecular formula with criss cross method​

Answer 1

Answer:

formula of calcium chloride is CACL2

Explanation:

calcium-cu chloride-cl valency of calcium is +2 and chloride bis-lby criss crossing them you will get CACL2

Answer 2

Answer:

CaCl2

Explanation:

Ca(Calcium) is in the 2nd group and has valency 2.

and Cl(Chlorine) is in the 17th group and it's valency is (8-7) = 1.

so, by criss cross method the valency of chlorine is transferred to the subscript of Calcium and valency of Calcium is transferred to the subscript of Chlorine.

so, the formula becomes Ca1Cl2

we dont value 1 or 1 if not written then also it will represent 1.

so, it becomes CaCl2