A tray of ice is put in the freezer. The ice cube tray holds 16 cubes, each 1 oz. How much energy must be removed from the ice to freeze it from room temperature (25 C) to -5 C?

May someone explain how to do this question?

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.