Which best explains why ionization energy tends to decrease from the top to the bottom of a group? The number of orbitals decreases.
The number of neutrons decreases.
Electrons get closer to the nucleus.
Electrons get farther from the nucleus.

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

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

Chlorine and water react to form hydrogen chloride and oxygen, like this: 2cl2 (g) + 2h2o (g) → 4hcl (g) + o2 (g) also, a chemist finds that at a certain temperature the equilibrium mixture of chlorine, water, hydrogen chloride, and oxygen has the following composition: compound concentration at equilibrium cl2 0.55m h2o 0.57m hcl 0.53m o2 0.34m calculate the value of the equilibrium constant kc for this reaction. round your answer to 2 significant digits.