What is the Molar Mass of Iron(Fe)? and also state how many particles there are in one mole of iron. will give brainliest to first answer

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?

What are four significant sources of ghgs that come from wostem washington?

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.