A certain container contains 3 moles of hydrogen gas and 2 moles of oxygen gas. The total pressure in the container is 100 kPa. What is the partial pressure of hydrogen and of oxygen in the container?

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

Can someone me with questions 12 and 13 plz.

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.