2. analyze which can be used to identify an
unknown substance: mass, melting point,
density, volume, state of matter? sc.8.p.8.4

Why do sodium and neon have vastly different chemical and physical properties despite having similar atomic masses?

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

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?