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August 1, 2014

Search: chemistry-redox

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chemistry
Can anyone give me a brief explanation about redox? I'm just not understanding any of it. How do you know if a reaction is redox or non redox....how do you know what would be reduced? I am just confused with the redox subject. Any direction?
October 6, 2008 by redox

Chemistry
what are redox/non-redox not getting it? Can you break it down?
October 12, 2012 by Help

Chemistry
NH3(g) + 202(g) = HNO3(aq) +H2O (l) Is this reaction a combination, decomposition, single replacement, double replacment or other? Also is it redox or non redox?
May 3, 2010 by Al

chemistry
i need help to understand the problem.. what is the relationship between the numbers of electrons gained and lost in a redox reaction? Do all electrochemical cells involve redox reactions?
November 16, 2013 by S1D

AP Chemistry
redox reaction: Hydrogen peroxide is added to an acidified solution of potassium permanganate. what is the total redox reaction?
September 23, 2013 by Gabriella

Chemistry Redox Reaction
Balance the equation as a redox reaction in acidic solution. Cu(s)+NO3^-1(aq)-->Cu^2+(aq)+NO(g)
June 4, 2009 by Juggernaut

chemistry
balance the redox equations: IO3-(aq) -> I2(aq) and I-(aq) -> I2(aq) balance the redox equation: S2O3(-2) -> S4O2(2-) and I3- -> I-
April 17, 2011 by Jake

Chemistry
Classify each of the following as a redox reaction or a non-redox reaction. Zn+CuCl2 -> ZnCl2+Cu HCl+NaOH -> H2O+NaCl 2CO+O2 -> 2CO2 SO3+H2O -> H2SO4
December 2, 2012 by Anon

chemistry
redox reaction..types of redox reaction and explain
March 15, 2012 by faith

Chemistry
Use oxidation numbers to identify if this reaction is REDOX reactions. SO2(g) + H2O(l) -> H2SO3(aq) for oxidation #s I got: SO2 = -2 for the S = -2 for the o2 H20 = +1 for H2 = -2 for O --> H2SO = +1 for H2 = -2 for S = -2 for O3 There for one oxygen was reduced hence ...
June 19, 2011 by Amy

Chemistry
Please help me verify: The following reactions are involved in the formation of acid rain. Use oxidation numbers to identify which of these reactions are REDOX reactions. a. 2SO2(g) + O2(g) �� 2SO2(g) -2 -2 0 -2 -2 No change - not REDOX reacton b. 3NO2(g) + H2O(l...
June 16, 2011 by Dexter

Chemistry
I know nothing about chemistry, but am wondering if someone could help me with these. 1) Balance this redox reaction using the oxidation-number method. Zn + O2 + HCl ZnCl2 + H2O 2) Balance this redox reaction using the half-reaction method. (basic solution) Zn + MnO4- Zn(...
October 14, 2010 by Sara

Chemistry
Label the following reactions as combination, decomposition, displacement, precipitation, or acid-base reaction. Also whether each reaction is a redox or non redox reaction. SO2(g)+H2O(l)-> H2SO3(aq) NH3(aq)+HS(-)(aq)-> NH4(+)(aq)+S(2-) Na2O2(l)-> Na2O(l)+O2(g) 3S(2...
April 5, 2011 by sara

Chemistry
I'm having a hard time with Redox and how to figure out which is redox Select all of the reactions that are redox reactions. I) Ca + 2H2O  Ca(OH)2 + H2 II) CaO + H2O  Ca(OH)2 III) Ca(OH)2 + H3PO4  Ca3(PO4)2 + H2O IV) Cl2 + 2 KBr  Br2 + 2 KCl I ...
March 18, 2010 by Mark

Chemistry
I'm having a hard time with Redox and how to figure out which is redox Select all of the reactions that are redox reactions. I) Ca + 2H2O  Ca(OH)2 + H2 II) CaO + H2O  Ca(OH)2 III) Ca(OH)2 + H3PO4  Ca3(PO4)2 + H2O IV) Cl2 + 2 KBr  Br2 + 2 KCl I ...
March 18, 2010 by Mark

Chemistry
Consider a generic redox reaction then suppose that the coefficients in the redox reaction are doubled. How will the following quantities be affected for a voltaic cell under nonstandard conditions, will they be Doubled, Halved, Squared, or No Change. Note that n is written as...
May 8, 2013 by Christopher

Chemistry
CONSIDER THE FOLLLOWING UNBALANCED REDOX EQUATION: IO3^-(AQ) + Al(S)-->I2(S) + A;^3+(AQ) A. WHAT IS THE OXDATION NUMBER OF IODINE IN THE IODATE ION? I GOT IO3^6(AQ)? B. WHICH SPECIES IS THE REDUCING AGENT I GOT AL^3+(AQ) C. USING THE OXIDATION AND REDUCTION HALF REACTIONS ...
November 30, 2011 by PAM

Chemistry
Redox Titrations I did a redox titration of NaBO3 with KMnO4. I used a .0545 M NaBO3 solution, and an average of .026 L of .01M KMnO4. I have to standardize the KMnO4 solution, does anyone know how to do this?
March 25, 2009 by Ryan

Chemistry 12
a) Use the standard reduction potentials table to balance the following redox equation: H2O2 + I + H = H2O + I2 b) Balance the following redox equation by the oxidation number method: Ag + HNO3 = AgNO3 + NO + H2O
May 24, 2011 by Laura

Chemistry
In the reaction of AL metal with aqueous potassium hydroxide, what type of reaction is occurring? -REDOX, Al metal is being reduced or -REDOX, Al metal is being oxidized.
August 13, 2009 by Adam R

Chemistry
Balanced equations..done? Is each reaction a redox reaction? For those reactions that are redox reactions, I must identify the substance being oxidized and the substance being reduced... (a) Zn(s) + CoCl2 (aq) ---> ZnCl2 (aq) + Co(s) (b) HI(aq) + NaOH(aq) ---> H2 O(l) + ...
June 29, 2014 by MD

chemistry
How do you write a redox reaction in an acidic environment for this? Cu^+2 + I- => CuI + I2 I understand that you get these equations for redox, but how do you put them in an acidic environment when there are no oxygens in the equation? 2I- => I2 + 1 electron 1 electron...
January 30, 2011 by CHEMISTRY

Chemistry - Redox
Balance the following redox reactions by inserting the appropriate coefficients. Al + MnO2 --> Al2O3 + Mn HNO3 + H2S --> NO + S + H20 Initially, I know the first step is to find assign all the oxidation numbers for the products and reactants listed, but am unsure if I ...
February 16, 2011 by Harold

Organic Chemistry
Draw and describe the three overall redox reactions than occur in the conversion of 2,6-dimethylnitrobenzene to 2,6-dimethylaniline using stannous chloride. (Not the mechanisms). What are the key structures in these reactions, and what are their oxidation states? What are the ...
July 25, 2011 by Tony

Chemistry
1) Balance this redox reaction using the oxidation-number method. Zn + O2 + HCl ZnCl2 + H2O 2) Balance this redox reaction using the half-reaction method. (basic solution) Zn + MnO4- Zn(OH)2 + MnO2
October 13, 2010 by Sara

Chemistry
which of the following are redox reactions a. 2Na+2H2O-->2Naoh+H2 b. MgBr2+2NaF-->MgF2+2NaBr c. 2CO+O2--> 2CO2 d. SO2+H2O--> H2SO3 For those reactions that are redox reactions: Indicate which atoms get oxidized and which atoms get reduced. Indicate which reactant ...
November 21, 2011 by Kali

Chem
How do you write redox reactions. I was given this equation below: 2Mg + O2 --> 2MgO I have to write the redox reaction
July 29, 2009 by Lena

chem-redox
Ca + Cr2O7{-2} = Ca{2+} + Cr{+3} Blance the redox please someone help me I got exam tomorrow and I got to go sleep soon
September 29, 2013 by Please help

Chemistry
Use oxidation numbers to identify reaction is REDOX reactions. a. 2SO2(g) + O2(g) -> 2SO2(g) for 2SO2 I got: -2 for S, -2 for O for O2 I got 0 for 2SO2 I got -2 for S again, and -2 again for 0 Therefore I lost one oxygen and a REDOX reaction occured Am I right?????
June 19, 2011 by Amy

AP Chemistry
i'm having trouble balancing the redox reaction for the iodine clock lab. The redox reaction inovlves a hydrogen sulfite ion and iodate ion in an acidified solution. i have the final balanced equation, 5 HSO3 + 2 IO3 ---> I2 + 5SO4 + H20 + 3H but i'm having trouble figuring...
March 13, 2008 by Jake

11th Grade Chemistry Redox
Im studying Redox Chapter. In this chapter I came across a point regarding oxidation. Loss of electron results in decrease in negative charge e.g MnO^2- = MnO^- + e^- 2Cl^- = Cl2 + 2e^- S^2- = S + 2e^- Now first tell me what does "2e^-" means secondly in the third example S...
May 5, 2010 by Akashdeep Singh Pune

ap chemistry
oxidation- reduction reactions What about them. Here is a site that may help you or repost with a more specific question. http://members.aol.com/profchm/redox.html
October 29, 2006 by Brianna

chemestry please check my anwer.
1.How do acid-base reactions differ from oxidation-reduction (or "redox") reactions? Answer Acid-base reactions involve an exchange of protons whereas redox reactions involve an exchange of electrons.<<< Acid-base reactions and redox reactions involve different ...
April 3, 2013 by asap

Chemistry
Balance the redox reaction: Ag(aq)+Cu(s)= Ag(s)+Cu(aq)
October 7, 2013 by Noelle

Chemistry
The reaction between 0.045 g of calcium with an excess of water was carried out in an ice calorimeter as used in this lab. The volume of water in the calorimeter decreased by 0.18 mL during the reaction a) Write the equation for the reaction which occurs. Is it a redox ...
June 3, 2009 by Sean

Redox chemistry
what is the PE for a neutral solution saturated with oxygen????
February 26, 2010 by Kaushik

chemistry
Balancing redox equations reactants: Cu, NO3
November 20, 2011 by Anonymous

chemistry-balanced redox equations
Use the following steps to balance the redox reaction below: Mg + Au+ Mg2+ + Au a. Write the oxidation and reduction half-reactions. Make sure each half-reaction is balanced for number of atoms and charge b. Multiply each half-reaction by the correct number, in order to ...
March 25, 2012 by princess

Chemistry
how many electrons take part in redox reaction: Cl2 -> ClO3^-
January 23, 2013 by yoshii

chemistry
would the method of spectrophotometry or redox titration be a more accurate?
February 23, 2009 by tiffany

chemistry
How do you balance this redox rxn? Al + HNO3 ----> Al(NO3)3 + NH4NO3 +H2O
April 22, 2009 by aj

AP Chemistry
What is the redox reaction of (i dont understand how to do this): MnO4-(aq) + H2O2(aq) -> Mn2+(aq) + O2(g)
November 12, 2009 by Anonymous

Chemistry
What is undergoing oxidation in the redox reaction represented by Fe Fe3+ Cl2 Cl- Pt
March 28, 2011 by Natalie

college chemistry
how do you balance this redox equation? Co(OH)2(aq) + Na2O2(aq) → Co(OH)3(s) + NaOH(aq)
November 23, 2010 by sparkle

chemistry
here is a redox reaction Fe+ Cu2+ Fe2+ Cu Is Fe oxidized and Cu reduced ? and why. Thanks for the help:)
November 25, 2011 by John G

Chemistry
What is the possible ionic equation of TrisEDTA solution? REDOX reaction.
April 25, 2012 by Maryam

chemistry
what is the difference between a redox rxn in and acidic soln or basic
June 7, 2012 by chemistt

chemistry
Balance the following redox reaction. MnO4 (aq) + Fe (s) --> Mn2+ (aq) +Fe2+ (aq)
May 11, 2013 by Lana

chemistry
I need the half reactions for this redox reaction: 2KClO3-----> 2KCl + 3 O2
June 9, 2013 by donna

Chemistry
Balance Redox using reactions by the 1/2 reaction method. NaIO3 (aq) + KI (aq) --> I2 (s)
May 22, 2014 by Jenny

chemistry
Redox reaction in assign oxidation number is ca3(po4)2
June 2, 2014 by Prajwal

chemistry
help balance this redox equation: HNO3 + Zn(s) <==> NO(s) + ZnO ...i know i need H2O and possibly H+
April 11, 2010 by omar

AP Chemistry
how do you balance a redox equation like: Bi(NO3)3 + Al + NaOH = Bi + NH3 + NaAlO2 ??
October 6, 2010 by Nicole

Chemistry
Use oxidation numbers to identify if this reaction is REDOX reactions. 3NO2(g) + H2O(l) �� 2HNO3(aq) + NO(g) 3NO2 = -3 for N = -2 for o2 H2O = +1 for H2 = -2 for O ----> 2HNO3 = +1 for 2H = -3 for N = -2 for O3 NO = -3 for N = -2 for O Therefore Nitrogen is ...
June 19, 2011 by Amy

Science
Part 1 Which of the following is a redox reaction? a. H2CO3 (aq) + 2NH3 (aq) → 2NH4+ (aq) + CO32- (aq) b. 2VO3- (aq) + Zn (s) + 8H+ (aq) → 2VO2+ (aq) + Zn2+ (aq) + 4H2O (l) d. Zn(NO) (aq) + 2NaOH (aq) → Zn(OH) (s) + 2NaNO (aq) part 2 For the redox reaction in...
June 30, 2011 by Jessica

College Chemistry
Balance this equations for redox reactions in basic solution. Fe(OH)3(s) + OCl- FeO42- + Cl-
September 23, 2010 by Marissa

Chemistry
determine the redox reaction represented by the following cell notation Mg Mg2 Cu2 Cu
March 28, 2011 by Natalie

Chemistry
Write a balanced redox reaction between mercury and bromine to form Hg2^2+.
December 6, 2010 by Ari

Chemistry
Balance the redox reaction.2NaClO3+4HCl-2ClO2+2H2O+2NaCl+Cl2
December 10, 2011 by Boateng Emmanuel

chemistry
Balance this equation by following equations of the REDOX Method. Cu + HNO3 --->Cu(NO3)2 + NO + H2O
January 26, 2012 by David Scott

chemistry
Separate this redox reaction into its component half-reactions. O2 + 2Zn -->2ZnO
February 24, 2012 by Anonymous

Chemistry
Balance the redox equation by oxidation number method: Cr2O7 2- + Br- + H+ = Cr 3+ + Br + H2O Please help!
February 24, 2012 by Sarah

chemistry
balancing redox reactions occured in the basic solution : Cl2 + SO2(g) --> Cl^- (aq) + SO4^-2(aq)
May 16, 2012 by nico

Chemistry
Separate this redox reaction into its component half-reactions. O2 + 2Mg----> 2MgO
July 24, 2013 by Brianna

Balance each of the following redox reactions occu
Balance each of the following redox reactions occurring in acidic solution a) SO32- (s) +MNO4- ---> SO42- +Mn2+ b) S2O32-+ Cl2 ---> SO42-+Cl-
August 5, 2009 by Sunshine

chemistry
The following problems deal with REDOX: identify the oxidation numbers, etc. a) KMnO4 Mn b)Fe(NO3)2 Fe c)NO2 O
October 3, 2007 by corey

chemistry
In the redox reaction: 4NH3(g)+3O2(g)-->2N2(g)+6H2O(l) the number of moles of electrons transferred is...
May 3, 2010 by Metia

chemistry
Would these be a redox reaction? CaO(s) + H2O(l) = Ca(OH)2(aq) 2FeSO4(aq) + 3H2O2(aq) = Fe2O3(s) + 3H2O(l) + 2SO42-(aq)
October 4, 2010 by edgar

chemistry II
What are the steps to balancing Redox reactions using the Valence method. thanks> ex problem: NH3+O2 -->H2O +NO
October 17, 2010 by Taylor

chemistry
What is the correct balanced redox reaction for the cell shown below?Fe(s) | Fe2+(aq) || Co2+(aq) Co3+(aq) | Pt
February 1, 2011 by Anonymous

chemistry
Ag+HNO3-----AgNO3+NO+H2O balance the redox reaction using the oxidation-number method
February 20, 2011 by sally

chemistry
O3SOOSO3^(2−) + Cr^(3+)+ -> HSO4^(1-) + Cr2O7^(2-). Could someone balance this redox reaction for me? I can't figure it out. Thanks
March 23, 2011 by Eddy

Chemistry
Balance the following redox reaction in acidic solution: H3PO4 + HNO2--> N2O4 + H3PO3
May 10, 2011 by JRoussel

Chemistry
Balance the following redox reaction in acidic solution: H3PO4 + HNO2--> N2O4 + H3PO3
May 10, 2011 by Janey

Chemistry
Balance the following redox reaction in acidic solution: H3PO4 + HNO2--> N2O4 + H3PO3
May 10, 2011 by Kynlee

chemistry
should magnesium metal be stored on the same shelf as copper chloride (redox reaction)
December 22, 2011 by shinchan

chemistry
Separate this redox reaction into its component half-reactions. Cl2 + 2Na --> 2NaCl
February 24, 2012 by Anonymous

Chemistry
need help balancing the following. redox reaction in acidic solution. Clo3-+Cl->>Cl2+ClO2
December 2, 2012 by chuckles

chemistry
Balance the following redox reaction by inserting the appropriate coefficients. H^+ +CrO4^2- +NO 2^- =Cr^3+ +H2O+NO3^-
April 19, 2013 by lee

chemistry
Mno4- + So3-2 = Mno2 + sO4-2 (OH-) solve this redox reaction and give me the method also
September 7, 2013 by kiara

Chemistry 2
Durango redox reaction the oxidation number of species Will decretase, increpase or stay the same
December 3, 2013 by Mary

help!! Chemistry
Zn + VO3 ^- --> Zn ^2+ + V^+3 Fe ^2+ + H2O2 + OH- --> Fe (OH) 3 V2O5 + I- + H^+ --> VO2 + I2 + H20 P + H+ + NO3- + H2O -->'NO + H3PO4 RedOX REACTIONS
June 6, 2014 by Nathan

Chemistry
Calculate the final concentration for the standardization of KMnO4 given this information: 2MnO4- + 5C2O4^-2 + 16H+ -> 2Mn^2+ + 10CO2 + 8H2O [final redox equation] Volume of KMnO4 titrated with H2SO4 + Na2C2O4 = 293 mL Volume KMnO4 titrated with H2SO4 alone = 0.2 mL Amount ...
May 2, 2012 by Katherine

chemistry
Reaction 1: I2(aq)Cu^+2(aq) Ag^+(aq)Br2(aq) Column 1---Column 2---Column 3---Column 4---Column 5 I-(aq)---X---X---T---T Cu(s)---T---X---T---T Ag(s)---X---X---X---T Br-(aq)---X---X---X---X Reaction of metals and solution of ions Reaction 2: Ag+(aq)Pb2+(aq)Cu2+(aq)Zn2+(aq) ...
April 14, 2008 by Joseph

Chemistry
Predict the product(s) and write a balanced equation for the following redox reaction: pentane (C5H12) + oxygen ---->
November 6, 2009 by L

ap chemistry
what is the galvanic cell for the redox reaction between sodium dichromate and mercury(I) nitrate in an acidic solution.
October 15, 2010 by brian

Chemistry
How do I balance this redox reaction? MnO4- + Fe2+ + H+ + Mn2+ + Fe3+ + H2O I don't understand. Don't I need a product?
December 2, 2012 by ANONYMOUS

chemistry
Lab: Creating a Redox Table Purpose: The purpose of this lab exercise is to construct a table of relative strengths of oxidizing and reducing agents. By completing this exercise, you will see how more extensive tables of relative strengths of oxidizing and reducing agents have...
April 11, 2008 by Joseph

Chemistry
Redox Reactions Can anyone help predict the reaction that will take place when Gold is put into a solution of Hydrochloric Acid?
March 1, 2008 by Anonymous

Chemistry
Ni (s) + Cd^2+(aq)-->Ni^2+(aq)+ Cd(s) MnO4^-1(aq)+ Al (s) ---> Mn^2+(aq)+Al^3+(aq) no matter what i do, i can't seem to balance either of these redox reactions. i'm always off. is there a trick to doing these? i need help please.
April 25, 2010 by Carl

chemistry redox titration
calculate the volume of a 0.02M mno4- solution that is required to react completely with 10.0ml of 0.1M c2o4-2
April 8, 2012 by carla

Chemistry- Dr. Bob again
Another Redox in BASIC ....having a tough time with these OH's no clue how to tackle. Cr(OH)3 + ClO^- => CrO4^2- +Cl2 thanks for your help
June 8, 2013 by Steve

CHEMISTRY
In half reaction method of the chemical equation balancing , how about those redox reactions that they don't contain any (H) and ( O ) atoms ?
July 8, 2014 by MAD

chemistry
Please, will someone help me balance this equation? There's always one element I just can't seem to balance. Cu+HNO3===>NO2+Cu(NO3)2+H20 Thanks for the help. Try this. Cu + 4HNO3 ==> 2NO2 + Cu(NO3)2 + 2H2O You're a genius! Do you think you could tell me how you ...
March 5, 2007 by Fidelia

Chemistry again
PbO2(s) + Pb(s) + H2SO4(aq)  PbSO4(s) + H2O(l) Can anyone help me identify what the redox reactions are for this equation? I don't understand how to do it when there are more than 2 chemicals.
February 13, 2008 by Alex

chemistry
please help this equation is driving my crazy. balance the following redox reaction in basic solution. H2O2 + ClO2 --> ClO-2 + O2
November 23, 2011 by Monique

bio chemistry
Relate membranes to energy metabolism, redox reactions, and ATP synthesis in both eukaryotic and prokaryotic cells.
June 22, 2013 by Anonymous

Chemistry
how do I balance the following skeleton redox equation for a reaction occurring in acidic solution. HNO2 + MnO4- yield to Mn2+ + NO3-
March 12, 2012 by Rachel

science, chemistry
Separate this redox reaction into its component half-reactions. O2+2Cu---->2CuO thought it was: Oxidation 2e-+O2---->2O(-2) Reduction Cu---->Cu(2+)-2e- but this is wrong
November 30, 2012 by Cari

chemistry
If the equilibrium constant for a one-electron redox reaction at 298 K is 7.8 104, calculate the corresponding G and Ecell. how would i set this problem up?
April 16, 2013 by sarah

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