Question

When calcium carbonate is decomposed, what mass of carbon dioxide is evolved?

Answer 1

You have not specified a mass.........

Explanation:

See this answer......... Does it help? You should also correct your equation in your report (don't bother about it being wrong here; it is all too easy to make such mistakes):

`CaCO_3(s) + Delta rarr CaO(s) + CO_2(g)uarr`

Is this equation balanced? Mass and charge MUST be conferred if it is to represent chemical reality.