Consider the equation. Fe times s plus CuSO sub 4 times aq rightarrow Cu times s plus FeSO sub 4 times aq Which reactant is a substance that is dissolved in solution?

The symbol (aq) means a substance is dissolved in water, or in an aqueous solution. In the equation, CuSO₄ is labeled (aq) and appears on the reactant side, so copper(II) sulfate is the dissolved reactant.

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