A student reacts Mg and HCl together. The product of this reaction is H2 gas and MgCl2. The balanced equation for this reaction is Mg + 2HCl → H2 + MgCl2
If I need to create 50 L of H2 how many moles of HCl should I start with?
a) 2.3 mol HCl
b) 4.5 mol HCl
c) 1.1 mol HCl
d) 44.6 mol HCl

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?