A weather balloon at Earth’s surface has a volume of 4 L at 294 K and 763 mmHg. If the balloon is released and the volume reaches 4.18 L at 717 mmHg, its temperature will be K . (Three sig figs)

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

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?