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How to Write Net Ionic Equation for H+ With Cu2s

A net ionic equation represents only reactions by soluble ions and compounds often in an aqueous solution. Ions present but that do not form molecules or react are not included. Cu2S is commonly known in nature as the mineral chalcocite, according to Mindat.org. It is a sulfide of copper, a transition metal, and the net ionic equation would show any reactions when introducing positive hydrogen ions. A reaction of these chemicals will result in several types of equations, including molecular, ionic and net ionic.

Instructions

- 1
  Write down the molecular equation of the Cu2S and positive hydrogen ions as follows: Cu2S + H+. The molecular equation incorporates all the ions involved regardless of the part they play in the reaction.
- 2
  Examine the solubility rules to see how soluble sulfides of transition metals are. According to Csudh.edu., sulfides of transition metals are highly insoluble, which means that they will not break down in a water-based aqueous solution, which is where many chemical reactions occur.
- 3
  Write the net ionic equation based on the rules of solubility. Since Cu2S is not soluble in water, its ions will not dissociate, and the total net ionic equation would be Cu2S + H+ yields Cu2S + H+. The H+ ion does not react with Cu2S in any way, so it would not be included in the net ionic equation, which is Cu2S + H+ yields Cu2S.

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