Use the chemical reaction: 2Mg + O2 > 2MgO to answer the question below. If 5 moles of O2 react, how many moles of MgO will form?

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?

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles

Air can be considered a mixture. which statement does not explain why?