Atypical double bond a. is stronger and shorter than a single bond b. consists of one σ bond and one π bond c. imparts rigidity to a molecule d. consists of two shared electrons pairs e. all of the above answers are correct.

What is the temperature of one mole of helium gas at stp?

Can someone me with 1 to 4 plz. fast

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.