a weather balloon is inflated with 3140 mL of helium at a location where the pressure is 1.06 atm and the temperature is 32°C. what will the volume of the balloon at an altitude where the pressure is 0.092 atm and the temperature is -35°C

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons

If an atom has 12 protons and 13 neutrons

Calculate the mass of 0.750 mol of the following substance. na3po4. , i'm not quite sure on how to set up the problem to solve! : (