 Copper(II) sulfate (source code)

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= Copper(II) sulfate
{title2=$\mathrm{CuSO_4}$}
{wiki}

In the <catalysed peroxide comparison>, <copper(II) sulfate> supplies dissolved <ions> before addition of <sodium hydroxide> forms a solid by <precipitation (chemistry)>. The comparison tests that solid-forming treatment rather than assuming the dissolved salt is itself an effective <catalyst>.

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