calculate the mole fraction for each solent insolvent. a.583g og H2SO4 in 1.50 kg of water- the acid solution used in an automobile battery b.0.86 g of NaCI in 1.00 x 102 g of water- a solution of sodium chloride for intravenous injection c. 46.85 g of codeine, C18H21NO3. in 125.5 g of ethanol, C2H5OH d. 25 g of 12 in 125 g of ethanol, C2H5OH

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

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?

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.