Compare the density of solids and gases. Support your answer by describing the arrangement of particles in solids and gases.

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?

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?