Water and salt are compounds made of the combination of more than one type of atom. Which statement is false?
А
Because they are compounds, they cannot be pure substances.
B
Both compounds are considered pure substances.
These compounds have specific physical properties that never
change.
D
These compounds have distinct chemical properties.

What layer of the atmosphere is directly above the troposphere?

What is the mass of 0.46 mol of mgcl2

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.