Find two numbers whose sum is 120 and whose product ia a maximum.
the answer is (60 , 60) ​

So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen

Ithink i might know wait one second let me serve

Answersocial classes;

Largely uneconomic because they provide little profit or food surplusi think so