Question

an element y forems an oxide whose chemical formulae is y2 o3
(a) state the valency of y.
(b) write the chemical foremulae of its:(a) Sulphate and (b) chloride?​

Answer 1

Answer:

a) valancy of y is 3 and

b) chemical formula is

• sulphate : Y2((SO)4)3
• chloride: Y(Cl)3