If the pressure is initially 0.850 atm before the addition of the gas and the position of the piston does not change, what is the new pressure inside of the cylinder?

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 air particles exert a pressure on the inside of the balloon

In numbering carbon atoms in the parent chain of a hydrocarbon, why would you number from right to left, rather than left to right