Which scenarios are examples of physical changes? Select three options.
D Wood is burned in a campfire and is turned into ash and smoke.
Silicon is cut into tiny pieces for computer chips.
Lead is melted to form pellets.
Liquid water freezes to form ice.
Yeast turns sugar into energy, water, and carbon dioxide gas.

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

Calculate the number of moles of ethane in 100 grams

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?