Which of these correctly defines the poh of a solution? the log of the hydronium ion concentration the negative log of the hydronium ion concentration the log of the hydroxide ion concentration the negative log of the hydroxide ion concentration

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.