Determine the correct order of steps for balancing this redox equation in acid: MnO₂ (aq) + Br" (aq) --> Mn²+ (aq) + Br₂ (g) Identify the elements for which oxidation numbers change. Balance the equation by inspection. Balance oxygen by adding H₂O (I). Adjust values of coefficients to balance electrons transferred. Balance hydrogen by adding H+(aq). Determine the oxidation number for each element.

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Q: i) H iii) CICI ii) H H CI HOH₂CCH₂CH3

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Q: Question 13 ( The [H3O*] in a solution of 0.20 mol/L methanoic acid is a.bcde mol/L

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Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.