8. What are the original and final oxidation numbers for iron in the smelting of iron from iron oxide? Fe2O3(s) + 3CO(g)→ 2Fe(s) + 3CO2(g) b. +3 →0 +2 →0 c. 0 +2 d. +6 →0 e. No change

Q: A sample of steel weighing 0.1798 g was dissolved and the manganese present was converted to MnO4–…

A:

Q: Consider the following redox reaction: Fe (s) + Cl2 (g) → FeCl2 (aq) Which of the following…

A: Oxidation :-  The process of lose of electrons or increase in oxidation number is called oxidation…

Q: a)Sodium thiosulfate, Na2S2O3, is used as a fixative in photography.  What is the oxidation number…

A: Oxidation state: It describes the extent of oxidation of an atom in a compound . It is an…

Q: Which metal can be oxidized with an aqueous solution of Cu2+ but not Pb2+?     Sn     Cr…

A: This question is based on the oxidizing agent(Reduction) and reducing agent(oxidation). The detailed…

Q: Which of the following species contains manganese with the highest oxidation number? A) Mn B) MnF₂…

A:

Q: + 1.14 V TI Pt Cr3+ (1 M) Cr2+ (1 M) T13+ (1 M) T13+ (aq) + 3e- → TI (s) Cr2+ (aq) → Cr3+ (aq) + e-…

A: An electrochemical cell possesses cathode and anode. A cathode is a metal electrode which is…

Q: 8. Which of the following is the strongest oxidizing agent. (E Fe/Fe=0.77, 1200/1 -0.54,Cu²/Cu-0.34,…

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Q: What is the chemistry behind why rusting occur rapidly in moist conditions compared to a dry…

A: Rusting is the oxidation process of iron objects. Rusting carried out in presence of moisture and…

Q: Identify the reducing agent in the following chemical reaction. Cd + NiO2 + 2H20 → Cd(OH)2 + Ni(OH)2…

A:

Q: 29.Identify which describes the oxidation process and which describes the reduction process. Then…

A: “Hey, since there are multiple questions posted, we will answer first given question. If you want…

Q: An electrical current of 3.0 A is used to deposit 0.5 g of nickel to a metal object, with Ni being…

A:

Q: Given the reaction: 2Fe(s) + 3C12(g) --> 2FEC13(s) What is the oxidation state for the reactant…

A: Given :  2Fe(s) + 3Cl2(g) → 2FeCl3(s)  To determine :-  Oxidation state for reactant iron

Q: (a) What is the oxidation no. of Mn in MnO4? Choose.. (b) What is the oxidation no. of Br in Br2 ?…

A:

Q: What is produced at the cathode? What is produced at the anode? Pb Cl2 Mg Fe F2 I2 Fe F2 Cl2 Pb O I2…

A: Molten mixture means there is no water vapour

Q: Determine the oxidation number of SS in H2SO3H2SO3 A. +4 B. +7 C. +3 D. +5 E. +6

A:

Q: An aqueous Cu+2 solution is electrolyzed for 45 minutes. A 3.2 ampre current is used. What mass of…

A: Electrochemistry is the branch of chemistry that deals with the chemical processes that cause…

Q: 12. Which of these methods are utilized to help prevent the rusting of iron? I. Painting iron II.…

A: Rusting is slowly eating down of metallic surface of iron by aerial oxygen and moisture. It is…

Q: 29.Identify which describes the oxidation process and which describes the reduction process. Then…

A:

Q: The oxidation number of iron in Fe203 is, (A) -2 B) +3 c) +1 D) -3 E) +2

A: Oxidation number of oxygen is -2

Q: What are the oxidation numbers for nickel and sulfur in Ni2(SO4) 3? a. Ni +3; S +6 b. Ni…

A: Given Ni2(SO4) 3

Q: Which element is associated with the term "galvanized"? a. Ga b. Al c. Ca d. Zn

A: Given,  Which element is associated with the term "galvanized"? a. Ga b. Al c. Ca d. Zn

Q: 1. How are carbon monoxide and amorphous forms of carbon such as charcoal and coke generally…

A: Hii there, As there are multiple sub parts posted. we are answering first-three sub parts . If you…

Q: sample of steel weighing 0.1708 g was dissolved and the manganese present was converted to MnO4–…

A: Mass of steel sample = 0.1708 g  Mn .....> MnO4- (Converted from steel)  Total volume of MnO4-…

Q: Based on the following reduction potential data, which is the strongest oxidizing agent? E+0.800 V…

A: Oxidising agent A compound that reduces itself and oxidises the other compound.

Q: Determine the oxidation number of the transition element in the following: (a) MnO2 2+ (b) Mn² (c)…

A: Oxidation Number: oxidation number, also called oxidation state, the total number of electrons that…

Q: 8. Which of the following is the strongest oxidizing agent. (E Fe/Fe=0.77, 1200/1 -0.54,Cu²/Cu-0.34,…

A:

Q: the reaction that occurs during iron corrosion is: a) Fe + 3e- = Fe3 + b) Fe = Fe2 + + 2e- c) Fe2 +…

A: Given : Corrosion of iron.

Q: Find the element with the highest oxidation number in each of the following formulas: 1.Na2Cr2O7…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: What metal can be oxidized by a solution of Mn2+ but not Mg2+? zinc silver…

A: From the standard data, EMn2+/Mno = -1.18 V      &       EMg2+/Mgo = -2.363 V   From the given…

Q: Determine the oxidation number of manganese in NaMnO4 A. +3 B. +4 C. +5 D. +7 E. +6

A:

Q: Which of the following reactions could be used to electroplate nickel with gold? O A) Zn(s) +…

A: Electroplating is a process by which metal ions migrate via a solution from a positive electrode to…

Q: 34. 2K,Cr20, + 2H2O+ 3S → 3502 + 4KOH + 2Cr,03

A: “Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: [1] KIO3 + 5KI + KIO3 6H* → 312 + 6K* + 3H20

A: Oxidizing agent: Those species oxidize others and reduce themselves. Reducing agent: Those species…

Q: What element is undergoing reduction (if any)? Zn(s) + 2 AgNO3(aq)  →  Zn(NO3)2(aq) + 2 Ag(s)

A: Reduction is defined as a gain of electrons, gain of hydrogen atoms, or loss of oxygen atoms.

Q: What is the oxidation number of "Cl" in Mg(ClO2)2?   a.) –1 b.) +6 c.) +3 d.) +7   e.) –7

A: The compound given is Mg(ClO2)2.

Q: 3. Why is the measured mass different than calculated mass deposited? 4. What affects the rate of…

A:

Q: What is the oxidation state of any pure element in its standard state?  a. Pick two elements as…

A: When a molecule loses an electron, that molecule is said to be oxidized whereas when a molecule…

Q: How many amps are required to produce 59.6 g of aluminum metal from a sample of molten aluminum…

A: AlF3 ----> Al3+ + 3F- Al3+ + 3e- ----> Al(s) Therefore, It requires 3 moles of electrons to…

Q: Which metal can be oxidized with an Sn* solution but not with an Fe" solution?

A: The order of reactivity of metals can be remembered by MAZINT- magnesium, aluminium, zinc, iron,…

Q: Use the table on the information page to predict if a reaction will occur when nickel metal and…

A: When a highly reactive metal is placed in a solution of less reactive metal, the metal with high…

Q: Assign an oxidation state to each element or ion: (a) V (b) Mg²+ (c) Cr³+ (d) O2

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: How many minutes will it take to plate out 4.56 g of Ni metal from a solution of Ni2+ using a…

A: Given: Mass of Ni deposited = 4.56 g Current passed = 45.5 A Molar mass of Ni = 58.69 g/mol

Q: What property allows copper to be purified in the presence of iron and nickel impurities? Explain.

A: • In order to achieve 99.9% pure copper used for wiring, electrorefining process is adopted. • In…

Q: 54. Determine the oxidation state of N in the compounds in the reaction for the formation of nitric…

A: The reaction is:3NO2(g)  + H2O(l) →2 HNO3(l)  + NO (g)we know that,the oxidation state of H=+1the…

Q: 23. What is the oxidation number of potassium in the following reaction? PBSO:(aq) 2KBr(aq) ->…

A:

Q: An external water pipe is built of aluminum (Al). In order to prevent corrosion, the nails that hold…

A: In order to prevent corrosion of aluminium metal pipe, the nails must be made of metal with more…

Q: Consider the reaction below. Which is the oxidizing agent? * Fe + O₂ + H+ Fe+2+ H₂O. A. Fe B. 02 C.…

A:

Q: A test for completeness of the reduction of copper(II) ions to metallic copper can be done via the…

A: The metal which has a more negative standard reduction potential value acts as a reducing agent.

Q: How many grams of magnesium are produced if a current of 6.50 A is passed through the electrolysis…

A: Given, Chemical Reaction :: MgCl2(l) → Mg(l) + Cl2(g) Current = 6.50 A Time = 34.00 minutes