HELP AS SOON AS POSSIBLE PLEASE……Which of the following equations is balanced? (5 points) 1) 2H2 + O2 + 4H20
2) 4Na + O2 -2Na20
3) Fe2O3 + H2 - 2Fe + 3H20
4) CH4 + O2 - CO2 + H20

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Select the correct answer. which phrase correctly describes temperature? o a. average rotational kinetic energy of the particles in an object o b. average energy of the particles in an object c. average translational kinetic energy of the particles in an object od. all energy possessed by the particles in an object

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?