13) Given the redox reaction: Cr3+ + Al Cr + Al3+ As the reaction takes place, there is a transfer of A) electrons from Al to Cr3+ B) electrons from Cr3+ to Al C) protons from Al to Cr3+ D) protons from Cr3+ to Al

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06-05-2018
Chemistry

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13) Given the redox reaction: Cr3+ + Al Cr + Al3+ As the reaction takes place, there is a transfer of A) electrons from Al to Cr3+ B) electrons from Cr3+ to Al C) protons from Al to Cr3+ D) protons from Cr3+ to Al

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mkryukova19 mkryukova19 · Answer 1 · 2018-05-06T17:20:15+02:00

mkryukova19 mkryukova19

06-05-2018

Cr³⁺+ Al⁰---> Cr ⁰+ Al³⁺
Cr³⁺+ 3e⁻---> Cr ⁰
Cr³⁺ takes electrons to become neutral atom.
Al⁰---> Al³⁺ + 3e⁻
Al⁰ loses electrons to become ion.

Electrons transferred from Al to Cr³⁺.
Correct answer is A) electrons from Al to Cr³⁺.

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