Which of the following is true in regard to a charged atom?

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

Which statement can best be concluded from the ideal gas law?

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?