What will you get when you add hydrogen and oxygen

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?

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

The time that is taken by neptune once around the sun is called