How does one determine an empirical formula from a percent composition?
A. Convert mass percents to moles and then divide by the smallest
mole value to get subscripts
B. Convert mass percents to grams and then divide by the smallest
mass percent value to find subscripts
C. Convert mass percents to grams and then divide by the smallest
gram value to find subscripts
O D. Convert mass percents to moles and then use the moles as
subscripts in the formula
SUBMIT

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

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.

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles