How many moles of carbonate ions are present in a sample that contains 1.35 moles of chromium (III) carbonate

What is avogadro’s number, and why is it useful

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

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?