Which atom is the standard that scientists use to compare units of atomic mass?

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.

Will a solution form when the solvent and solute are both nonpolar? a. not likely b. never c. most likely

Type the letter that represents the correct location for each particle type below. the neutron is found at __ the electron is found at __ the proton is found at __