To determine the mass of co2 that forms from a given mass of caco3, which of the following must be known? check all that apply.

(which do i choose? )

-molar mass of caco3
-molar mass of cao
-mole ratio of caco3 to co2
-mole ratio of cao to co2
-molar mass of co2
-mass of cao formed

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?

In a water molecule, hydrogen and oxygen are held together by a(an) bond. a) double covalent b) ionic c) nonpolar covalent d) hydrogen e) polar covalent

Which fact represents evidence for the big bang theory?