What is the molarity of 40ml of NaOH if it takes 25ml of 0.5 molar HCl to neutralize it?

Apure solvent has a vapor pressure the vapor pressure of a solution. a. equal to b. lower than c. higher than

Iwll give extra points to who gets this for ! what type of reaction is this? ?

A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction