Decide which bond in each pair is polar and explain your reasoning. Place 8+ and 8- superscripts on the element symbols of each polar bond to indicate the direction of the polarity.
(a) F-F and C-F
(b) 0-H and H-H
(c) 0-0 and N-O

Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.