The orbital radii of four planets in our solar system is shown in the following table. Orbital Radii PlanetOrbital Radii (AU) W5.2 X0.72 Y0.37 Z19.1 Which planets are likely to be gas giants? W and X X and Y Y and Z W and Z

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

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?

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro