APFIVE Net Ionic Equation For Precipitation
When analyzing a reaction between Pb(NO₃)₂(aq) and KI(aq) that forms a yellow precipitate, a student writes the following net ionic equation: Pb²⁺(aq) + 2I⁻(aq) → PbI₂(s). What error, if any, did the student make?
A
K⁺ and NO₃⁻ ions should be included
B
No error; the equation is correctly balanced
C
The state of PbI₂ should be (aq), not (s)
D
The coefficient of I⁻ should be 1
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