Question

9th and 13th one answers needed

Answer 1

ans.9) CaCO3+ 2HCl➡️ CaCl2 + CO2+H2O

on passing the gas evolved the lime water turns milky.

ans.13)

I.) X is Zinc Zn and Y is Cu

ii.) Copper sulphate

iii.) the type of reaction is substitution reaction

Zn + CuSO4 ➡️ZnSO4+ Cu.

hope this much help.