Apresidential candidate must live in the united states for at least 9 years before running for president. true of false

False. You must live in the USA for at least 14 years to become president.

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

Ashould be answer.