We will have double displacement reaction (i.e. cations and anions exchange):
copper (II) nitrate → **Cu(NO3)2(aq)
sodium sulfide → **Na2S(aq)
**Recall solubility rules: All nitrates are soluble. Sulfides (S2-) are generally insoluble except when paired with Group 1A cations.
Write a molecular equation for the precipitation reaction that occurs (if any) when the following solutions are mixed. If no reaction occurs, write NO REACTION.
copper(II) nitrate and sodium sulfide
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