Question

What happens if you add a hot substance of water to a cold substance of water? Will the water become cooler or warmer? HELP!!

Answer 1

Well if you are adding hot water to a cold  water would become warmer

Answer 2

Logically, if you add something that is cold to an already hot substance, it can't get warmer because the substance added was cold. Therefore, the substance as a whole can only get cooler.

Like if you add ice to a hot glass of water, the substance as a whole will get cooler because the original substance was hot, and the substance added was cool.