Which of the following molecules contains the most number of lone pairs? HE H20 CH4 N2 Cl2

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?