45. For the reaction: 2N05 + 2Mn(OH)2 N20 + 2MnOz + H20 + 20H- The oxidation sta

Question

45. For the reaction: 2N05 + 2Mn(OH)2 N20 + 2MnOz + H20 + 20H- The oxidation state of manganese changes from what to what? How many electrons are transferred in the reaction? a. b. 46. For the reaction: 4HCl0 + 2SbO+ 2Cl2 + Sb205 + 2H+ + H2O The oxidation state of chlorine changes from what to what? How many electrons are transferred in the reaction? a. b. 47. For the reaction: The oxidation state of chlorine changes from what to what? How many electrons are transferred in the reaction? a. b. 48. Write the oxidation and reduction half-reactions for the following electron transfer reaction below. (aq) (aq)

Explanation / Answer

45)
a)
oxidation state of Mn in Mn(OH)2 is +2
oxidation state of Mn in MnO2 is +4
So, changes from +2 to +4

b)
oxidation state of each Mn changes from +2 to +4 state
So, there is 2 electrons transferred per Mn atom
There are 2 atoms in balanced equation,
so, total number of electrons transferred = 2*2 = 4
Answer: 4

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