How to make a girl happy? (to the two people who will get these free points, just copy the following and paste this in your milk)

if you know, you know

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Will mark brainliest how many electrons can be held in the energy level n = 4?

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices