The recrystallizaiton of benzoin and vanillin are two different procedures. explain what happens at the molecular level for each one.

next, explain the difference in the recrystallization procedures used depending on the compound to e purified and the nature of the contaminants.

what happens at the molecular level when benzoin and vanillin are recrystalized?

What are the similarities of physical and chemical change ?

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

What happens to the glucose molecule during the process of cellular respiration? (5 points) select one: a. it gets broken down. b. it forms oxygen. c. it builds muscles. d. it uses up energy.