12. An electrolysis reaction is A. hydrophobic.
B. spontaneous.
C. exothermic.
D. non-spontaneous.

What semimetal can form four single covalent bonds.

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-