To what class of organic compounds does ethyl acetate belong

Newtons second law deals most cosely with

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.