Dust falls on a certain metropolitan area at a rate of 67 mg·m−2·day−1. Major metallic elements in the dust include Al, Mg, Cu, Zn, Mn, and Pb. Mn accumulates at a rate of 0.06 mg·m−2·day−1. How many metric tons (1 metric ton = 1000 kg) of Mn fall on the 556 square kilometers of this metropolitan area in 5.0 years?

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

Nonmetal halogen family atmoic mass 35

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same