HELP ASAP PLEASE 4) What is the molarity of a Mg(OH)2 solution if 250.00 mL is required to completely
neutralize 500.00 mL of a 1.6 M solution of H2SO4?

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.

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

What are the similarities of physical and chemical change ?