QuestionJune 20, 2025

What is the final,balanced equation for this reaction? 2Cr^3+(aq)+6Cl^-(aq)arrow 2Cr(s)+3Cl_(2)(g) 2Cr^3+(aq)+2Cl^-(aq)+6e^-arrow Cl_(2)(g)+2Cr(s) Cr^3+(aq)+6Cl^-(aq)+3e^-arrow 2Cr(s)+3Cl_(2)(g) Cr^3+(aq)+2Cl^-(aq)arrow Cr(s)+Cl_(2)(g)

What is the final,balanced equation for this reaction? 2Cr^3+(aq)+6Cl^-(aq)arrow 2Cr(s)+3Cl_(2)(g) 2Cr^3+(aq)+2Cl^-(aq)+6e^-arrow Cl_(2)(g)+2Cr(s) Cr^3+(aq)+6Cl^-(aq)+3e^-arrow 2Cr(s)+3Cl_(2)(g) Cr^3+(aq)+2Cl^-(aq)arrow Cr(s)+Cl_(2)(g)
What is the final,balanced equation for this reaction? 2Cr^3+(aq)+6Cl^-(aq)arrow 2Cr(s)+3Cl_(2)(g) 2Cr^3+(aq)+2Cl^-(aq)+6e^-arrow Cl_(2)(g)+2Cr(s) Cr^3+(aq)+6Cl^-(aq)+3e^-arrow 2Cr(s)+3Cl_(2)(g) Cr^3+(aq)+2Cl^-(aq)arrow Cr(s)+Cl_(2)(g)

Solution
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Answer

Cr^{3+}(aq)+2Cl^{-}(aq)\rightarrow Cr(s)+Cl_{2}(g) Explanation 1. Identify the correct stoichiometry The balanced equation must conserve both mass and charge. Check each option for balance. 2. Analyze each option Option 1: 2Cr^{3+}(aq)+6Cl^{-}(aq)\rightarrow 2Cr(s)+3Cl_{2}(g) is unbalanced in terms of electrons. Option 2: 2Cr^{3+}(aq)+2Cl^{-}(aq)+6e^{-}\rightarrow Cl_{2}(g)+2Cr(s) is unbalanced in terms of reactants and products. Option 3: Cr^{3+}(aq)+6Cl^{-}(aq)+3e^{-}\rightarrow 2Cr(s)+3Cl_{2}(g) is unbalanced in terms of chromium atoms. Option 4: Cr^{3+}(aq)+2Cl^{-}(aq)\rightarrow Cr(s)+Cl_{2}(g) is balanced in terms of both mass and charge.

Explanation

1. Identify the correct stoichiometry<br /> The balanced equation must conserve both mass and charge. Check each option for balance.<br /><br />2. Analyze each option<br /> Option 1: $2Cr^{3+}(aq)+6Cl^{-}(aq)\rightarrow 2Cr(s)+3Cl_{2}(g)$ is unbalanced in terms of electrons.<br /> Option 2: $2Cr^{3+}(aq)+2Cl^{-}(aq)+6e^{-}\rightarrow Cl_{2}(g)+2Cr(s)$ is unbalanced in terms of reactants and products.<br /> Option 3: $Cr^{3+}(aq)+6Cl^{-}(aq)+3e^{-}\rightarrow 2Cr(s)+3Cl_{2}(g)$ is unbalanced in terms of chromium atoms.<br /> Option 4: $Cr^{3+}(aq)+2Cl^{-}(aq)\rightarrow Cr(s)+Cl_{2}(g)$ is balanced in terms of both mass and charge.
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