Which statements describe density? Check all that apply. A. Density is a chemical property of an object.
B. The density of an object is constant.
C. Density is a derived unit of measure.
D. Density is the sum of the mass and volume of an object.
E. The density of an object determines whether it will sink or float.

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.