When covalent bonds form between two atoms, both atoms' outer shells a. become ionized. b. are full of electrons. c. require additional electrons to become full. d. will easily give up electrons in order to become more stable.

Which of the following statements about acidic water is true? a. acid has no effect on the h, o molecules. b. the solution contains a larger number of oh ions than h, o ions. c. the solution contains a larger number of h, o ions than qh ions. d. the solution contains an equal number of h, o ions and oh ions. none of the above e.

Which position represents spring in the southern hemisphere? a) b) c) d)

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.