What is the molar concentration of a solution formed when .55 mol of Ca(OH)2 are dissolved in 2.20 liters of HOH?

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.

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".

Why do lunar and solar eclipse not happen every month