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1) Explain the chemistry of acid mine drainage using a net ionic equation.

2) Explain why the solubility of some metal compounds will be increased in acidic conditions. Use the NIE and Le Chatliers Principle in your explanations.

3) A water sample is analyzed to contain two metals with concentrations above MCL Cd2+ and Al3+. You decide to treat this water with OH and the equilibrium pH is 7.16 . Given the equilibrium pH will you have successfully reduced each metal ion level to below the MLC? Provide detailed calculations to support your answer.

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