the product, diphenylacetylene, is only sparingly soluble in diethyl ether. why is the addition of water preferable to adding diethyl ether as a means of precipitating the product for isolation by filtration?

Plz mark brainliest 30 points 1) 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?

  the mississippians were considered to be  horticulturalists, which means they were

Adilute aqueous potassium nitrate solution is