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Question- Thirty mg of calcium and 50 mg of magnesium are dissolved in 0.50 L of water. What is the total hardness of the solution expressed in mg/L as CaCO3
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Magnesium metal(0.100 mol) and a volume of aqueous hydrochloric acid that contains0.500 mol of HCl are combined and react to completion. How manyliters of hydrogen gas, measured at STP, are produced? Mg(s) + 2HCl(aq) --- ...
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