> Acetylene (C2H2) undergoes combustion in excess oxygen to generate gaseous carbon dioxide and water. Given AHYCO2) = -393.5 kJ/mol AHH2000)-241.8 kmol and AHC2H2 - 226.6
kJ/mol, how much energy is released when 10.5 moles of acetylene is burned?

A- 52.700
B- 13.200K
C- 9,050
D- 26,400

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4

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 type of matter is made of only one kind of atom