How many molecules would e in 5.00 moles of ammonia

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

What effect might melting sea ice have for people who live in coastal areas?