aqueous hydroiodic acid → HI(aq)
aqueous calcium sulfide → CaS(aq)
HI(aq) + NaOH(aq) →
double displacement reaction:
HI(aq) + CaS(aq) → H2S + CaI2
▪ H2S → gaseous
▪ I- are soluble except when paired with Ag+, Pb2+, Cu+, Hg22+
▪ CaI2 → soluble → aqueous
Balanced reaction equation:
2 HI(aq) + CaS(aq) → H2S(g) + CaI2(aq)
For the total ionic equation → soluble ionic compounds (in aqueous form) separate or breaks up and become ions
• Solids, gases, and liquids will not break up since they are insoluble compounds
Total ionic equation:
Enter the net ionic equation for the reaction that occurs when aqueous hydroiodic acid and aqueous calcium sulfide are mixed.
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Based on our data, we think this problem is relevant for Professor Huchital's class at FAU.