According to the Brönsted-Lowry theory, an acid is 1. a proton donor only
2. a proton acceptor only
3. a proton donor and a proton acceptor
4. neither a proton donor nor a proton acceptor

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?

How many molecules are in 6.0 moles of methane

Why do lunar and solar eclipse not happen every month