Question

Calculate the mass of zinc oxide when 0.1mole of zinc trioxocarbonate (iv)is heated strongly.

Answer 1

I assume you mean zinc carbonate or ZnCO3. You don't need all that gibberish to name ZnCO3.
ZnCO3 ==> ZnO + CO2
0.1 mol ZnCO3 will release 0.1 mol CO2.
Then grams CO2 = mols x molar mass CO2 = ?

Answer 2

wat is d answer