The difference between speed and velocity

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

Which element would mostly likely have an electron affinity measuring closest to zero