Reactions represented by thefollowing equations take place in water solutions. W

Question

Reactions represented by thefollowing equations take place in water solutions. Write each fullequation in total ionic form, then identify spectator ions andwrite the equations in net ionic form. Solids that do not dissolveare designated by (s); and gases that do not dissolve aredesignated by (g); and those substances that dissolve but do notdissociate are underlined.

MnO2(s) + 4HCl(aq)® MnCl2(aq) + Cl2(aq) +2H2O(l)

Explanation / Answer

total ionic MnO2 + 4H+ +4Cl-   -> Mn2+ +2Cl-   + Cl2 + 2H2O Cl- is spectator ion b/c MnCl2 is soluble and so is HCl net ionic :   MnO2 + 4H+ + 2Cl--> Mn2+   + Cl2 +2H2O

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