HELP PLEASE BE QUICK the shape (not the size) of an electron cloud is determined by the electrons

A) energy

B) sublevel position

C) speed

D) principal quantum number

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.

2b2t

explanation:

2b2t