Question

When aqueous solutions of K₂CrO₄ and Ba(NO₃)₂ are mixed together, which of the following is the correct net ionic equation?

A. 2CrO⁴₂−(aq)+Ba₂⁺(aq)→BaCrO₄(s)
B. 2K⁺(aq)+Ba₂⁺(aq)→BaK₂²⁺(aq)
C. CrO₄²^−(aq)+Ba₂⁺(aq)→BaCrO₄(s)
D. 2K⁺(aq)+NO³^−(aq)→2KNO₃(aq)

Answer 1

The correct net ionic equation for the reaction between aqueous solutions of K₂CrO₄ and Ba(NO₃)₂ is: CrO₄²⁻(aq) + Ba²⁺(aq) → BaCrO₄(s)

Step-by-step explanation:

The correct net ionic equation for the reaction between aqueous solutions of K₂CrO₄ and Ba(NO₃)₂ is:

CrO₄²⁻(aq) + Ba²⁺(aq) → BaCrO₄(s)

The net ionic equation shows only the species that participate in the chemical reaction, excluding spectator ions. In this case, the spectator ions are K⁺ and NO₃⁻, which do not participate in the actual reaction.