One measure of the organic content of wateris chemical oxygen demand (COD). In the COD test, organic matter is oxidized with dichromate, Cr2O72-, at low pH to CO2and the dichromate is reduced to Cr 3.Write the balanced overall reaction for the oxidation of ethanol (CH3CH2OH) in the COD test.

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.

Why is nh3 classified as a polar molecule

What is the percent by mass of oxygen in fe2o3