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What is the correct name for the precipitate formed when mixing potassium carbonate and nickel(II) chloride? The ratio 8:1 as a fraction? Calculus homework help please, Limits and continuity involved, with piece wise functions.? A^2-9b^2-12b-4 resolve it into factor? What patterns would you expect in graphs of the functions giving circum- ference, surface area, and volume of a sphere?