In which of the following are the symbols and names for the ions given correctly? A) S2 : sulfide ; Li^+ : lithium
B)N: nitride; Na^+ : sodium
C) O^-: oxide ; Br^2 : bromide
D) Al^3-: aluminum; P^3-: phosphide

An aqueous solution of potassium hydroxide is standardized by titration with a 0.194 m solution of hydrobromic acid. if 25.2 ml of base are required to neutralize 24.2 ml of the acid, what is the molarity of the potassium hydroxide solution? m potassium hydroxide

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage