Does nitrogen have the same number of protons in the atom and ion

Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.