Use Hess's Law and a table of heats of formation to determine the enthalpy for the following reaction SO3(g) —> SO2 + 1/2O2(g)

How do the energy differences between the higher energy levels of an atom compare with the energy difference between the lower energy level of the atom

50 pts plz what is the physical state of matter of baking soda.

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?