Write an isotope notation for an element has an atomic number of 1 and a mass number of 3.

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

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?