Which of the following should be classified as a solution?
muddy water
a soft drink with no fizz
foam
soil

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

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.