Chemists can use moles to calculate: a. how much of the products are needed and how much reactant will be made. b. how much product will be made, but not how much of the reactants are needed. c. how much of the reactants are needed and how much product will be made. d. how much of the reactants are needed, but not how much product will be made.

Aside from human impact, which of the following causes less water vapor production over a small area? (2 pderivartin

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?

Pls ill give u brainliest which of the following is true about science? 1. political conditions are unable to influence it. 2. economic concerns may prevent it from solving problems.