Which functional group is found in methyl ethanoate?

A central carbon is double bonded to O above, and single bonded to R below left and to R below right.

A central carbon is double bonded to O above, and single bonded to R below left and to O R prime below right.

A central carbon is double bonded to O above, and single bonded to R below left and to H below right.

A carbon is bonded to R to the left, C O O H above right, H to the right, and N H 2 below right.

answer: the enthalpy of the overall chemical reaction is +87.88 kj or +88 kj.

according to hess's law, the overall enthalpy of a reaction is the difference between the sum of enthalpy values of all the products and the sum of enthalpy values of all the reactants.

δh(reaction) = ∑nδh(products) - ∑nδh(reactants)

δh(reaction) = [δh +δh] - [δh]

δh(reaction) = [1(-287.02) + 1(0) ] - [1(-374.9)] kj = +87.88 kj

here, δh (pcl3) = -287.02 kj, δh(cl2) = 0, δh(pcl5) = -374.9 kj

therefore, enthalpy of the overall reaction is +87.88 kj or +88 kj.

chemistry sucks a**

explanation: