is 20 grams of a product are formed during a reaction with a percent yield of 80% what was the theoretical yield of the reaction​

Write a paragraph at least 10 sentences explaining how rocks are used today in society

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible?

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.