Two beach balls collide, deforming during a collision. they bounce off in opposite directions. what type of collision was this? a. it was not a collision b. perfectly inelastic c. inelastic d. elastic

You would do 1500/4 and the answer is 375

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.