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Chemistry 12 Online
OpenStudy (anonymous):

what number is missing? 2C4H10 +?O2 → 8CO2 + 10H2O + heat

OpenStudy (gebooors):

Calculate number of oxygen atoms in right side of the reaction Equation. Then you get ? By dividing number of O atoms by 2.

OpenStudy (anonymous):

so 13

OpenStudy (aaronq):

yes

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