What is the hydroxide ion concentration in a solution of nh3 with a poh of 4.65?

Why do sodium and neon have vastly different chemical and physical properties despite having similar atomic masses?

Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?