If the heat of fusion is 32.2 kj/mol, the amount of heat energy required to melt 5.67 grams of feo is

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !

Need only answer if you think you know it

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car