What can a drop of liquid mercury be described as? a pure substance and a compound
an impure substance that is reactive
an impure substance that is unreactive
a pure substance and an element

Using the periodic table, complete the table to describe each atom. type in your answers

How are isotopes of the same chemical element alike? how are they different?

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.