Jamal combined baking soda and vinegar but he is having trouble determining if what he observed is a chemical reaction or a physical change. a. change in color b. absorption of heat c. no change on properties d. formation of new substances

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .