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When balanced with the smallest set of whole numbers, what is the coefficient of O2 in the following equation: __C2H4 __O2 rightwards arrow ___CO2 __H2O



Answer :

To balance the equation C2H4 + O2 —> CO2 + H2O, you need 3 O2 molecules to balance the oxygen atoms. So, the coefficient of O2 is 3.

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