Question

what is the product of the following reaction? C+ O2= CO2
a) C
b) O2
c) CO2
d) all of these​

Answer 1

Answer:

Can the following reaction occur, C + O2 = CO2 + CO?

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As Eric already pointed out, this is not one reaction, it is two.

Actually, in order that a chemical equation describing a chemical reaction is balanced by only one set of stoichiometric coefficients, the number of non-equivalent atomic conservation equations for the elements present in the species involved in the reaction must be one unit less than the number of stoichiometric coefficients to be assigned. More refined details are here omitted for brevity sake.

In the case under discussion, the stoichiometric coefficients to be assigned are four, while the atomic conservation equations are only two, namely those regarding elements carbon and oxygen.

So, the equation describing the reaction that has been proposed could be balanced by an infinite number of sets of stoichiometric coefficients, that, in practice, are any possible linear combination of those pertaining to the two equations described by Eric.

The reaction proposed is sometimes referred to as described by a “multiple-stoichiometry equation”, or balanced by a “not univocal set of stoichiometric coefficients”.

Answer 2

C + O2 ➡ CO2

Answer - CO2

Hope it helps ya ❤️