The concentration of a and b will decrease while c will increase provided all other physical quantities are kept constant in the reaction
B. Heat is a form of energy so boiling it would increase energy. (I guess)
The answer is electrolytes. Strong electrolytes like strong acids, strong bases and salts dissociate completely into ions when dissolved and no neutral molecules are present in their solution. Weak electrolytes like weak acids and weak bases do not completely ionize in water and some neutral molecules are present in their solution, while nonelectrolytes do not dissociate into ions when in solution at all.