2.00 L sample of a gas is at 200. kPa. What will be the new volume of the gas if the pressure changed to standard pressure? Assume the temperature is kept constant.

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg

Scientists often deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each of these numbers in an alternate form.