03-07-2014
Chemistry

Answered

When MgCO3(s) is strongly heated, it produces solid MgO as gaseous CO2 is driven off.
Does the oxidation number of carbon change upon the formation of CO2?

Answer :

pyromorphite pyromorphite

04-07-2014

[tex]MgCO_3--^T-->MgO + CO_2\uparrow[/tex]

the oxidation number of carbon in MgCO3 = +IV
the oxidation number of carbon in CO2 = +IV

so, there is no change

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