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Write as a mathematical expression and evaluate. Subtract 17/18 from the product of 3 1/2 and 5 2/9.? How many atoms are in 3.12 molecular compound of propane. (C3H6)? Lalongitud de un rectangulo es el doble de su altura que dimenciones puede tener el rectangulo si el area deve ser maximo de 162 cm cuadrado? Identify the class of compounds that contains each of the following functional groups. C) carboxyl group? 4Cr + 3O2 -> 2Cr2O3 How Many Moles of chromium are needed to react with 45.6 g of oxygen? My answer was 1.9molCr but Idk if its right?