(1) if uv beads change color when exposed to ultra-violet radiation, and uv is responsible for sunburn and skin damage, what can you say about shade and uv radiation? how did the uv radiation occur in the shade?

(2) how could these beads be useful in determining the status of the ozone layer? what limitations are there in such a use?

What is the mass of sodium in 3 moles of sodium chloride

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

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.