Determine the heat of reaction for the process 2 Fe(s) + 3/2 O2(g) Fe2O3(s) using the information given below: 2 Fe(s) + 6 H2O(l) 2 Fe(OH)3(s) + 3 H2(g) H° = +321.8 kJ H2(g) + 1/2 O2(g) H2O(l) H° = −285.8 kJ Fe2O3(s) + 3 H2O(l) 2 Fe(OH)3(s) H° = +288.6 kJ

Ineed ! it’s science and it’s due tomorrow!

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?

Stage in which a star’s outer layers have started to cool and grow outward?