chemistry-redox

58,527 results

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?

Chemistry

what are redox/non-redox not getting it? Can you break it down?

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?

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?

AP Chemistry

redox reaction: Hydrogen peroxide is added to an acidified solution of potassium permanganate. what is the total redox reaction?

Chemistry Redox Reaction

Balance the equation as a redox reaction in acidic solution. Cu(s)+NO3^-1(aq)-->Cu^2+(aq)+NO(g)

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-

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

chemistry

redox reaction..types of redox reaction and explain

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 ...

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...

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...

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...

Chemistry

Is the decomposition of lead(ii)nitrate a redox reaction? Equation with O.S. underneath 2Pb(NO3)2 => 2PbO + 4NO2 + O2 +2 -1 +2-2 +4-2 0 I got all the o.s. but I am still confused as to whether or not this makes it a redox reaction. Do the individual elements in the nitrate ...

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 ...

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 ...

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...

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 ...

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?

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

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.

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) + ...

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...

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 ...

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 ...

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

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 ...

Chem

How do you write redox reactions. I was given this equation below: 2Mg + O2 --> 2MgO I have to write the redox reaction

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

science

AgNO3+NaCL=AgCL+NaNO3 is not a redox reaction but Cu+2AgNO3=2Ag+Cu(NO3)2 is a redox reaction.explain

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?????

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...

11th Grade Chemistry Redox

I’m 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 ...

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

chemistry

2. The voltage of an electrochemical cell depends on the redox reaction occurring in the cell. Given a redox reaction below: Zn(s) + Pb2+(aq) --> Zn2+(aq) + Pb(s) Pb2+(aq) + 2 e--->Pb(s)Eº = -0.13V Zn2+(aq) + 2 e--->Zn(s)Eº = -0.76V Calculate the E.M.F (Voltage) of ...

chemistry

The voltage of an electrochemical cell depends on the redox reaction occurring in the cell. Given a redox reaction below: Zn(s) + Pb2+(aq) --> Zn2+(aq) + Pb(s) Pb2+(aq) + 2 e--->Pb(s)Eº = -0.13V Zn2+(aq) + 2 e--->Zn(s)Eº = -0.76V Calculate the E.M.F (Voltage) of the...

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 ...

Chemistry

Balance the redox reaction: Ag(aq)+Cu(s)= Ag(s)+Cu(aq)

science

determine if each equation represent a redox reaction.if it is a redox reaction,write dowm the two half reactions of(1) 2KCL3=2KCL+3O2,,(2)BaCL2+2KIO3=Ba(IO3)2+2KCL and (3)HCL+NaOH=H2O+NaCL

Chemistry

How can I do an acrostic poem for the word REDOX?

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 ...

Redox chemistry

what is the PE for a neutral solution saturated with oxygen????

chemistry

Balancing redox equations reactants: Cu, NO3

chemistry

Balance redox reaction. Fe(s) + O2(g) + H2O(l)-->Fe2+(aq) +OH-

chemistry

In many residential water systems, the aqueous Fe3+ concentration is high enough to stain sinks and turn drinking water light brown. The iron content is analyzed by first reducing the Fe3+ to Fe2+ and then titrating with MnO4- in acidic solution. Fe2+(aq) + MnO4-(aq) ? Mn2+(aq...

AP Chemistry

What is the redox reaction of (i don't understand how to do this): MnO4-(aq) + H2O2(aq) -> Mn2+(aq) + O2(g)

General chemistry i

Is this a redox reaction? 4Cr+3O2 -> 2Cr2O3

Chemistry

How do i figure out if 2NO2 -> N2O4 is a redox reaction

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 ...

Chemistry

how many electrons take part in redox reaction: Cl2 -> ClO3^-

chemistry

would the method of spectrophotometry or redox titration be a more accurate?

chemistry

How do you balance this redox rxn? Al + HNO3 ----> Al(NO3)3 + NH4NO3 +H2O

Chemistry

What is undergoing oxidation in the redox reaction represented by Fe Fe3+ Cl2 Cl- Pt

college chemistry

how do you balance this redox equation? Co(OH)2(aq) + Na2O2(aq) → Co(OH)3(s) + NaOH(aq)

chemistry

here is a redox reaction Fe+ Cu2+„³ Fe2+ Cu Is Fe oxidized and Cu reduced ? and why. Thanks for the help:)

Chemistry

What is the possible ionic equation of TrisEDTA solution? REDOX reaction.

chemistry

what is the difference between a redox rxn in and acidic soln or basic

chemistry

Balance the following redox reaction. MnO4 (aq) + Fe (s) --> Mn2+ (aq) +Fe2+ (aq)

chemistry

I need the half reactions for this redox reaction: 2KClO3-----> 2KCl + 3 O2

Chemistry

Balance Redox using reactions by the 1/2 reaction method. NaIO3 (aq) + KI (aq) -->„³ I2 (s)

chemistry

Redox reaction in assign oxidation number is ca3(po4)2

science chemistry

balance Redox :- CuS + SO4²- = CuO+SO2

science chemistry

balance Redox :- CuS + SO4²- = CuO+SO2

chemistry

help balance this redox equation: HNO3 + Zn(s) <==> NO(s) + ZnO ...i know i need H2O and possibly H+

AP Chemistry

how do you balance a redox equation like: Bi(NO3)3 + Al + NaOH = Bi + NH3 + NaAlO2 ??

College Chemistry

Balance this equations for redox reactions in basic solution. Fe(OH)3(s) + OCl- ¨ FeO42- + Cl-

Chemistry

determine the redox reaction represented by the following cell notation Mg Mg2 Cu2 Cu

Chemistry

Write a balanced redox reaction between mercury and bromine to form Hg2^2+.

Chemistry

Balance the redox reaction.2NaClO3+4HCl-2ClO2+2H2O+2NaCl+Cl2

chemistry

Balance this equation by following equations of the REDOX Method. Cu + HNO3 --->Cu(NO3)2 + NO + H2O

chemistry

Separate this redox reaction into its component half-reactions. O2 + 2Zn -->2ZnO

Chemistry

Balance the redox equation by oxidation number method: Cr2O7 2- + Br- + H+ = Cr 3+ + Br + H2O Please help!

chemistry

balancing redox reactions occured in the basic solution : Cl2 + SO2(g) --> Cl^- (aq) + SO4^-2(aq)

Chemistry

Separate this redox reaction into its component half-reactions. O2 + 2Mg----> 2MgO

chemistry

Balance the redox reaction of eq. Cu2S + SO4(-2) gives CuO + SO2 (Acidic )

Chemistry

Balance the following redox reaction in basic solution. H2(g)+Fe3+(aq) ---> H2O(l)+Fe2+(aq)

PRACTICAL CHEMISTRY

REDOX balancing reaction Cr2O7 + NO-2 Cr3+ + NO3 (acid medium)

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 ...

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...

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-

Chemistry

Under standard conditions, the Gibbs free energy of the reactants G,std(reactants) in a redox reaction in aqueous solution is 360.65 kJ and the Gibbs free energy of the products G,std(products) is 158.14 kJ. The number of moles, n, of electrons transferred in the redox ...

chemistry

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

chemistry

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

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)

chemistry II

What are the steps to balancing Redox reactions using the Valence method. thanks> ex problem: NH3+O2 -->H2O +NO

chemistry

What is the correct balanced redox reaction for the cell shown below?Fe(s) | Fe2+(aq) || Co2+(aq) Co3+(aq) | Pt

chemistry

Ag+HNO3-----AgNO3+NO+H2O balance the redox reaction using the oxidation-number method

chemistry

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

Chemistry

Balance the following redox reaction in acidic solution: H3PO4 + HNO2--> N2O4 + H3PO3

Chemistry

Balance the following redox reaction in acidic solution: H3PO4 + HNO2--> N2O4 + H3PO3

Chemistry

Balance the following redox reaction in acidic solution: H3PO4 + HNO2--> N2O4 + H3PO3

chemistry

should magnesium metal be stored on the same shelf as copper chloride (redox reaction)

chemistry

Separate this redox reaction into its component half-reactions. Cl2 + 2Na --> 2NaCl

Chemistry

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

chemistry

Balance the following redox reaction by inserting the appropriate coefficients. H^+ +CrO4^2- +NO 2^- =Cr^3+ +H2O+NO3^-

chemistry

Mno4- + So3-2 = Mno2 + sO4-2 (OH-) solve this redox reaction and give me the method also

Chemistry 2

Durango redox reaction the oxidation number of species Will decretase, increpase or stay the same

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

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 ...

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) ...

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