HELP ME PLEASE : What is the difference between a conductor and an insulator of electricity?

Insulators cause electricity to heat up, and conductors block the flow.

Conductors slow electricity down, and insulators speed it up.

Conductors allow the flow of electricity, and insulators block the flow.

Insulators allow the flow of electricity, and conductors block the flow.

The Correct choice is C

Conductors allow the flow of electricity, and insulators block the flow.

answer; i believe the correct answer is (solid gold);

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.