QuestionFebruary 20, 2026

Write the balanced NET ionic equation for the reaction when Cr(NO_(3))_(3) and Li_(2)CO_(3) are mixed in aqueous solution. If no reaction occurs, simply write only NR. Be sure to include the proper phases for all species within the reaction.

Write the balanced NET ionic equation for the reaction when Cr(NO_(3))_(3) and Li_(2)CO_(3) are mixed in aqueous solution. If no reaction occurs, simply write only NR. Be sure to include the proper phases for all species within the reaction.
Write the balanced NET ionic equation for the reaction when Cr(NO_(3))_(3) and Li_(2)CO_(3) are mixed in aqueous solution. If no reaction occurs, simply write only NR. Be sure to include the proper phases for all species within the reaction.

Solution
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Answer

2Cr^{3+}(aq) + 3CO_3^{2-}(aq) \to Cr_2(CO_3)_3(s) Explanation 1. Identify reaction type Cr(NO_3)_3 is soluble (aq), Li_2CO_3 is soluble (aq), potential reaction is precipitation of Cr_2(CO_3)_3 if insoluble. 2. Check solubility of Cr_2(CO_3)_3 Carbonates of transition metals are generally insoluble → Cr_2(CO_3)_3 will precipitate. 3. Write molecular equation 2Cr(NO_3)_3(aq) + 3Li_2CO_3(aq) \to Cr_2(CO_3)_3(s) + 6LiNO_3(aq) 4. Write total ionic equation 2Cr^{3+}(aq) + 6NO_3^-(aq) + 6Li^+(aq) + 3CO_3^{2-}(aq) \to Cr_2(CO_3)_3(s) + 6Li^+(aq) + 6NO_3^-(aq) 5. Cancel spectator ions (Li⁺, NO₃⁻) 2Cr^{3+}(aq) + 3CO_3^{2-}(aq) \to Cr_2(CO_3)_3(s)

Explanation

1. Identify reaction type <br /> $Cr(NO_3)_3$ is soluble (aq), $Li_2CO_3$ is soluble (aq), potential reaction is precipitation of $Cr_2(CO_3)_3$ if insoluble. <br />2. Check solubility of $Cr_2(CO_3)_3$ <br /> Carbonates of transition metals are generally insoluble → $Cr_2(CO_3)_3$ will precipitate. <br />3. Write molecular equation <br /> $2Cr(NO_3)_3(aq) + 3Li_2CO_3(aq) \to Cr_2(CO_3)_3(s) + 6LiNO_3(aq)$ <br />4. Write total ionic equation <br /> $2Cr^{3+}(aq) + 6NO_3^-(aq) + 6Li^+(aq) + 3CO_3^{2-}(aq) \to Cr_2(CO_3)_3(s) + 6Li^+(aq) + 6NO_3^-(aq)$ <br />5. Cancel spectator ions (Li⁺, NO₃⁻) <br /> $2Cr^{3+}(aq) + 3CO_3^{2-}(aq) \to Cr_2(CO_3)_3(s)$
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