Can someone please help me with this and tell me how you got your answer

How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.

The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?