The empirical formula for water is H2O. A substance with the molar mass of 54.06 g/mol is known. What must the molecular formula of this substance be?

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

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?