A swimming pool whose volume is 10 comma 00010,000 gal contains water that is 0.020.02% chlorine. Starting at tequals=0, city water containing 0.0030.003% chlorine is pumped into the pool at a rate of 55 gal/min. The pool water flows out at the same rate. What is the percentage of chlorine in the pool after 11 hourhour? When will the pool water be 0.0060.006% chlorine?

In a laboratory experiment, a fermenting aqueous solution of glucose and yeast produces carbon dioxide gas and ethanol. the solution was heated by burning natural gas in a bunsen burner to distill the ethanol that formed in the flask. during the distillation, the ethanol evaporated and then condensed in the receiving flask. the flame of the burner was kept too close to the bottom of the flask and some of the glucose decomposed into a black carbon deposit on the inside of the flask. during this experiment the following changes occurred. which of these changes involved a physical change and not a chemical change? check all that apply. 1-condensation of ethanol 2-evaporation of ethanol 3- formation of carbon dioxide gas from glucose burning of natural gas 4-formation of ethanol from glucose by yeast 5-formation of a carbon deposit inside the flask

What are the major types of a chemical compound

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *