For which of these questions could a testable hypothesis be developed? Check all that apply. A. Do children’s heart rates increase at the same speed when walking uphill?
B. Is experimenting with moldy bread more fun than experimenting with yogurt cultures?
C. Does temperature affect how long blood can be stored?
D. How does moisture affect the growth of moss on a tree?
E. Which of Leeuwenhoek’s microscopes was the coolest?

Gymnast always perform on padded mats. how does the mats protect the gymnast

How to convert a density of 0.791g/cm3 to lb/ft3

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.