in ammonia NH3 the hydrogen atoms Orient themselves as far away as possible for each other because this Arrangement blank

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.

Wind and moving water provide energy. chemical mechanical thermal none of the above