How many moles of Oxygen (O2) gas can be stored in a standard gas cylinder at a temperature of 20.0o C and a pressure of 15200 kPa? The volume of a standard gas cylinder is 47 Liters

Easy definition for atom and atomic mass

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

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?