Calculate the molarity (M) of a solution that contains 1.5 grams of KOH and has a volume of 2.0 L. You must show your work in order to receive credit.

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.

Who discovered a pattern to the elements in 1869?

Which of these statements describes the size of an atom? a. an atom is larger than a sheet of aluminum foil. b. an atom is small but can be seen with just our eyes. c. an atom is the size of a plastic building block. d. an atom is tiny and cannot be seen without magnification.