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I need to write a 25 page thesis paper on anything in US history up until probably around 2004. Because i can choose anything i cant decide on what to write about. Specific topic help please ??

using this chemical equation: Na2CO3 + Zn2(C2H3O2) = Na2(C2H3O2) + CO3Zn2 how would i calculate the mass of ZnCO3 produced, and how much ZnCO3 should have been produced?