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Write a Balanced Net Ionic Equation for the Reaction Below

Question 74

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Write a balanced net ionic equation for the reaction below in an acidic solution. Cr2O72-(aq) + Ni(s) → Cr3+(aq) + Ni2+(aq)


A) Cr2O72-(aq) + 3 Ni(s) + 14 H+(aq) → 2 Cr3+(aq) + 3 Ni2+(aq) + 7 H2O( Write a balanced net ionic equation for the reaction below in an acidic solution. Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + Ni(s) → Cr<sup>3+</sup>(aq) + Ni<sup>2+</sup>(aq)  A)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + 3 Ni(s) + 14 H<sup>+</sup>(aq) → 2 Cr<sup>3+</sup>(aq) + 3 Ni<sup>2+</sup>(aq) + 7 H<sub>2</sub>O(   )  B)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + Ni(s) + 14 H<sup>+</sup>(aq) → 2 Cr<sup>3+</sup>(aq) + Ni<sup>2+</sup>(aq) + 7 H<sub>2</sub>O(   )  C)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + 3 Ni(s) → 2 Cr<sup>3+</sup>(aq) + 3 Ni<sup>2+</sup>(aq) + O<sup>2-</sup>(aq)  D)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + Ni(s) + 14 H<sup>+</sup>(aq) → 2 Cr<sup>3+</sup>(aq) + Ni<sup>2+</sup>(aq) + 7 H<sub>2</sub>O(   )  E)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + 3 Ni(s) + 7 H<sup>+</sup>(aq) → 2 Cr<sup>3+</sup>(aq) + 3 Ni<sup>2+</sup>(aq) + 7 OH<sup>-</sup>(aq) )
B) Cr2O72-(aq) + Ni(s) + 14 H+(aq) → 2 Cr3+(aq) + Ni2+(aq) + 7 H2O( Write a balanced net ionic equation for the reaction below in an acidic solution. Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + Ni(s) → Cr<sup>3+</sup>(aq) + Ni<sup>2+</sup>(aq)  A)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + 3 Ni(s) + 14 H<sup>+</sup>(aq) → 2 Cr<sup>3+</sup>(aq) + 3 Ni<sup>2+</sup>(aq) + 7 H<sub>2</sub>O(   )  B)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + Ni(s) + 14 H<sup>+</sup>(aq) → 2 Cr<sup>3+</sup>(aq) + Ni<sup>2+</sup>(aq) + 7 H<sub>2</sub>O(   )  C)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + 3 Ni(s) → 2 Cr<sup>3+</sup>(aq) + 3 Ni<sup>2+</sup>(aq) + O<sup>2-</sup>(aq)  D)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + Ni(s) + 14 H<sup>+</sup>(aq) → 2 Cr<sup>3+</sup>(aq) + Ni<sup>2+</sup>(aq) + 7 H<sub>2</sub>O(   )  E)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + 3 Ni(s) + 7 H<sup>+</sup>(aq) → 2 Cr<sup>3+</sup>(aq) + 3 Ni<sup>2+</sup>(aq) + 7 OH<sup>-</sup>(aq) )
C) Cr2O72-(aq) + 3 Ni(s) → 2 Cr3+(aq) + 3 Ni2+(aq) + O2-(aq)
D) Cr2O72-(aq) + Ni(s) + 14 H+(aq) → 2 Cr3+(aq) + Ni2+(aq) + 7 H2O( Write a balanced net ionic equation for the reaction below in an acidic solution. Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + Ni(s) → Cr<sup>3+</sup>(aq) + Ni<sup>2+</sup>(aq)  A)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + 3 Ni(s) + 14 H<sup>+</sup>(aq) → 2 Cr<sup>3+</sup>(aq) + 3 Ni<sup>2+</sup>(aq) + 7 H<sub>2</sub>O(   )  B)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + Ni(s) + 14 H<sup>+</sup>(aq) → 2 Cr<sup>3+</sup>(aq) + Ni<sup>2+</sup>(aq) + 7 H<sub>2</sub>O(   )  C)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + 3 Ni(s) → 2 Cr<sup>3+</sup>(aq) + 3 Ni<sup>2+</sup>(aq) + O<sup>2-</sup>(aq)  D)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + Ni(s) + 14 H<sup>+</sup>(aq) → 2 Cr<sup>3+</sup>(aq) + Ni<sup>2+</sup>(aq) + 7 H<sub>2</sub>O(   )  E)  Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) + 3 Ni(s) + 7 H<sup>+</sup>(aq) → 2 Cr<sup>3+</sup>(aq) + 3 Ni<sup>2+</sup>(aq) + 7 OH<sup>-</sup>(aq) )
E) Cr2O72-(aq) + 3 Ni(s) + 7 H+(aq) → 2 Cr3+(aq) + 3 Ni2+(aq) + 7 OH-(aq)

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