Asubstance is a good conductor of electricity. which of the following best explains the probable position of the substance in the periodic table?
a) it is between groups 1 to 12 because it is a metal.
b) it is between groups 13 to 18 because it is a metal.
c) it is between groups 1 to 12 because it is a non-metal.
d) it is between groups 13 to 18 because it is a non-metal.

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .