What mass of AlCl 3 can be prepared from 1.0052 g Al 2 O 3 , 0.5483 g C, and 1.794 Cl 2 if the reaction produces an 85.0% yield

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

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