Chemistry

Write a net ionic equation for the reaction that occurs when cobalt(II) carbonate (s) and excess hydroiodic acid are combined.

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  1. molecular equation:
    CoCO3 + 2HI==> CoI2 + CO2 + H2O

    Turn this into an ionic equation.
    CoCO3(s)+ 2H^+ + 2I^- ==> Co^2+ + 2I^- + CO2 + H2O

    Net ionic equation:
    Cancel those ions that appear on both sides of the equation. What's left is the net ionic equation.

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  2. Write a net ionic equation for the reaction that occurs when aqueous solutions of sodium hydroxide and hydrochloric acid are combined.

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