At terminal velocity, which two forces are balanced? * gravity and air resistance
gravity and magnetism
O magnetism and air resistance
O friction and air resistance

Which statement justifies that phosphine (ph3) is a polar molecule?

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

How many molecules are found in 1.32 mol of nacl?