the overall cell reaction occurring in an alkaline battery is: zn(s) + mno₂(s) + h₂o(l) → zno(s) +…

the overall cell reaction occurring in an alkaline battery is: zn(s) + mno₂(s) + h₂o(l) → zno(s) + mn(oh)₂(s)\nnote: reference the fundamental constants table for additional information.\npart 1 of 4\nhow many moles of electrons flow per mole of reaction? round your answer to the nearest whole number.\nmol e⁻

the overall cell reaction occurring in an alkaline battery is: zn(s) + mno₂(s) + h₂o(l) → zno(s) + mn(oh)₂(s)\nnote: reference the fundamental constants table for additional information.\npart 1 of 4\nhow many moles of electrons flow per mole of reaction? round your answer to the nearest whole number.\nmol e⁻

Answer

Explanation:

Step1: Determine oxidation - states

Oxidation state of Zn in Zn(s) is 0, in ZnO(s) is +2. Oxidation state of Mn in MnO₂(s) is +4, in Mn(OH)₂(s) is +2.

Step2: Write half - reactions

Oxidation half - reaction: Zn(s)→ZnO(s), Zn loses 2 electrons. Reduction half - reaction: MnO₂(s)→Mn(OH)₂(s), Mn gains 2 electrons.

Step3: Check electron balance

The overall reaction is balanced in terms of electrons. For 1 mole of the overall reaction, 2 moles of electrons flow.

Answer:

2