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- Provide the balanced chemical equation for the undesirable reaction between HgCl2 and Sn2+ that will occur if you use too much Sn2+ during the reduction step (forms a gray precipitate).Write balanced equations for oxidation of NH3 with HOCl assuming the following major end products. N2 and Cl- NO and Cl-Why alkali is added to the nitrification tank？ A. to provide electron donors B. to provide alkalinity for the nitrification reaction C. to acidify the reaction solution D. to provide nutrients for the nitrifier bacteria
