Chemistry - DrBob222 please check and help

Can you check these? And I need help on one.
Oxidation Number Method of Balancing Redox Reactions
1)Neutral Solution
Sn^2+ + Fe^3+ ----> Fe^2+ + Sn^4+
Balanced equation
Sn^2+ + 2Fe^3+ ----> 2Fe^2+ + Sn^4+

2)Acidic Solution
Fe^2+ + Cr2O7^2- ---> Cr^3+ + Fe^3+
Balanced equation
14H^+ + 6Fe^2+ + Cr2O7^2- ---> 2Cr^3+ + 6Fe^3+ + 7H2O

3) Basic Solution
Mno4^- + SO3^2- ---> SO4^2- + MnO2
Balanced Equation
I can't figure out how to do this one.
First -
2MnO4 + 3So3^2- ---> 3SO4^2- + 2MnO2
Then I added H2O on one side to help balance the O's. Then I had to add an H+ to the reactants side to balance out the H's. Since it was a basic solution I had to add OH- to the answer side. But then I had to add it to the other one as well.
I have -
OH- + H- + 2MnO4 + 3So3^2- ---> 3SO4^2- + 2MnO2 + H2O + OH-
OH- + H- becomes H2O...the H's are unbalanced and I don't know how to keep them balanced while making sure it's basic.

4) Basic Solution
CH3OH + MnO4^- ---> MnO4^2- + CO3^2-
Balanced Equation
CH3OH + 6MnO4^- ---> 6MnO4^2- + CO3^2-

I don't know how to balance out the H's.

Also, can you please explain to me the half reaction method?
Can you do this question and explain what you did.

Hg + H3IO6^2- ---> Hg2O + IO3^-

Thanks so much for all the help!

  1. 👍
  2. 👎
  3. 👁

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chem

    what occurs during the reaction below 4Hcl+MnO2-->MnCl2+2H2O+Cl2 1.the manganese is reduced and its oxidation number changes from +4 to +2. 2.the manganese is oxidized and its oxidation number changes from +4 to +2. 3.the

  2. Chem Oxidation-Reduction Titrations

    H2O2→ O2 + 2H+ + 2e- OCl- + 2H+ + 2e-→ H2O+ Cl- H2O2(aq) + OCl-(aq) → H2O(l) + Cl- (aq) + O2(g)Assign oxidation numbers to the following atoms: O in H2O2 ________; Cl in OCl- __________The oxidizing agent for this RedOx rxn

  3. Chemistry

    what does Zn( NO3)2 form in a half equation for redox ( reduction and oxidation )??

  4. Chem 1

    Use oxidation states to identify the element that is being oxidized in the following redox reaction: Cu(s)+2 H 2 S O 4 (aq) → CuS O 4 (aq)+S O 2 (g)+2 H 2 O(l)

  1. Chemistry

    need help balancing the following. redox reaction in acidic solution. Clo3-+Cl->>Cl2+ClO2

  2. Chemistry

    Which atom has a change in oxidation number of –3 in the following redox reaction? K2Cr2O7 + H2O + S - - > KOH + Cr2O3 + SO2 K Cr*** O S

  3. Chemistry

    In the redox conversion of CO to CO2− 3 , the oxidation number of C goes from (−2, 0, +2) to (−4, −2, +4, +6). Recall that the oxidation number of oxygen is typically −2. 1. +2; +6 2. −2; −4 3. 0; −2 4. 0; +6 5.

  4. chemistry

    Write the balanced net ionic equation for each of the following: 1) The reaction of dilute nitric acid with solid aluminum oxide. 2) The reaction of nitrous acid (HNO2) with potassium permanganate to produce nitrate and Mn(II)

  1. Chemistry

    Dr.Bobb222 please help balance the following oxidation-reduction reactions, which occur in acidic solution, using the half-reaction method. (Use the lowest possible coefficients. Include states-of-matter under the given conditions

  2. Chemistry- Dr Bob

    Dr Bob Can you please assist Redox balancing in BASIC sol. NO2- +Al-->NH3 +Al(OH)4- if you could please walk through step by step. I don't know how to get oxidation #s for Al(OH)4- vs. Al I get Al=0 Al(OH)4-= +3 But if so...then


    Hello there! I was wondering if you could check my answers for me? I was having trouble and I finally understand. 1. Indicate the oxidation number of carbon and sulfur in the following compounds. A) CO= +2 C) Na2CO3= +4 E) CH4= -4

  4. Chemistry

    Identify the atom that increases in oxidation number in the following redox reaction. 2MnO2 + 2K2CO3 + O2 2KMnO4 + 2CO2 *A.) Mn B.) O C.) K D.) C Please show work Thank you.

You can view more similar questions or ask a new question.