500g of zinc carbonate was heated to constant mass.A.state what was observed? write an ionic equation that took place? calculate the apparent loss in mass?

2 answers

Your post isn't quite clear. What DID YOU OBSERVE? I don't know what you saw.
ZnCO3 ==> ZnO + CO2
What do you mean by APPARENT loss in mass. It either lost mass or didn't lose mass. There is nothing apparent about it.
A White Precipitate Of Zinc Oxide Was Formed