Which coefficients balance this equation?
_ch4 + _o2 -> _co2 + _h2o
a. 1, 1, 1, 1
b. 1, 1, 2, 1
c. 1, 2, 1, 2
d. 2, 1, 2, 1

Can someone me with questions 15 to 17 plz.

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

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?