The theoretical yield of ammonia in an industrial synthesis was 550 kg, but only 480 kg was obtained. what was the percentage yield of the reaction?

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

What is the independent variable in this investigation? mass volume sample number substance density

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?