Question

Atoms of Ca and S would be expected to react in a ratio of

A) 1:1
B) 1:2
C)2:1
D)3:1

Answer 1

Option A = 1:1

Step-by-step explanation:

The atoms of calcium and sulphur when react their ration is 1:1. The charge on calcium is +2 and on sulphur is -2.

Ca⁺²S⁻²

The +2 and -2 charges are cancel out and overall charge will be zero.

CaS

so their atomic ratio will be 1:1