How many molecules are there in 200 grams of Carbon Tetra Chloride (CCl4)? 1 point 7.82 molecules of CCl4 5.12 x 10^-20 molecules of CCl4 2.16 x 10^-24 molecules of CCl4 7.82 x 10^23 molecules of CCl4

Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.

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?

Once similarity and one difference between a mixture of elements and a mixture of compounds