Consider the mixture of ethanol, c2h5oh, and o2. how many molecules of co2, h2o, c2h5oh, and o2 will be present if the reaction goes to completion?

Answer : The number of molecules of are 2, 3, 1 and 3 respectively.

Explanation :

The given balanced chemical reaction is,

Balanced chemical reaction is the reaction in which the number of atoms of an individual elements present on reactant side must be equal to the product side.

The species present on the left side of the right arrow is the reactant and the species present on the right side of the right arrow is the product.

From the balanced chemical reaction, we conclude that there are 1 molecule of , 3 molecules of , 2 molecules of and 3 molecules of .

since electrons are negative the answer is neagtaive