Solid potassium chlorate (KClO3) decomposes to form oxygen gas and solid potassium chloride. How many liters of oxygen gas will be produced from 37.4 g KClO3 at STP? (Use the correct number of significant figures in your answer.)

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

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?

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?