A student pulls up to a stop sign behind a truck with a couch in the truck bed. She notices that the strap holding the back of the couch to the truck has broken. When the truck pulls away from the stop sign onto the busy highway, what will most likely happen to the couch?

Describe the forces both attractive and repulsive that occur as two atoms move closer together.

Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.

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