CH-559

Alcohols

Chemistry · Secondary 3 · Hard · Alcohols

Which balanced chemical equation correctly represents the complete combustion of ethanol,

C_2H_5OH

?

$C_2H_5OH + 3O_2 → 2CO_2 + 3H_2O$
$C_2H_5OH + 2O_2 → 2CO_2 + 3H_2O$
$C_2H_5OH + O_2 → 2CO_2 + 2H_2O$
$2C_2H_5OH + 3O_2 → 2CO_2 + 6H_2O$

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