Consider the nuclear equation below. Superscript 239 subscript 94 upper P u right arrow variable X plus superscript 4 subscript 2 upper H e.

What is X?
Superscript 235 subscript 96 upper C m.
Superscript 243 subscript 92 upper U.
Superscript 235 subscript 92 upper U.
Superscript 243 subscript 96 upper C m.

Complete the sentence. the lower the hydrogen ion concentration, the the ph. higher lower closer to 7 closer to 0

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?

Which one of the following substances would be the most soluble in ccl4? na2so4 h2o ch3ch2ch2ch2oh c4h10 hi