8.Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected? 9.Which arrow or arrows indicate a process that cycles carbon from living or nonliving organisms? Describe the process or processes you selected. 10.Which arrow or arrows represent reactions that demonstrate a conservation of mass and energy? Explain your answer.

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

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.