What volume of chlorine gas, measured at STP, is necessary for the complete reaction of 5.02 g of aluminum? Molar mass: Al = 26.98 g/mol, Cl2 = 70.90 g/mol, AlCl3 = 133.34 g/mol

2 Al(s) + 3 Cl2(g) --> 2 AlCl3(s)

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in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

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tony (lordcaos066)

it is b that is the answer.