what is the molaritt of a solution that was prepaid by disloving 3.0g of CaSO4 in enough water to make 55mL of solution?

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.

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear

What is the most common form of matter in the universe