To estimate the blood alcohol level, a device called Breathalyzer can be used. It contains potassium, dichromate, K2Cr2O7, which will oxidize alcohol. In this reaction, the dichromate ion Cr2O72- is reduced to Cr3+. How many electrons are gained during the redox reaction of chromium.

Q: In the identification of chlorate ion, this half reaction occurs       ClO3-     →     Cl-  This…

A: A Redox reaction leads to oxidation and reduction processes simultaneously. Oxidation and reduction…

Q: Determine the oxidation number for the indicated element ineach of the following substances: (a) S…

A: (a) The oxidation number of S in SO2 is determined as follows, The sum of oxidation numbers for…

Q: In the reaction shown below, the oxidizing agent is ____. 3 Fe(NO3)2 (aq) + 2 Al (s) → 3 Fe (s) + 2…

A: the oxidizing agent is an agent that oxidizes other substances and reduced otself.

Q: Is 2Mg(s)+O2(g)=2MgO(s) a redox reaction?

A: In redox reaction oxidation and reduction occurs simultaneously.

Q: (c) MnOq²- Element Oxidation Number Mn i i

A:

Q: Consider the following redox reaction: Ag⁺(aq) + Fe²⁺(aq) ⇌ Ag(s) + Fe³⁺(aq). How many moles of…

A: In the given reaction we can see that the Ag+ is being reduced to the Ag and Fe2+ is being oxidised…

Q: 7. Assume solid Glucose (C¢H1;O6) and Oxygen gas are the starting substances (reactants) in the…

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

Q: In a redox reaction, which reactant is the oxidizing agent? The reducing agent?

A: We are asked to determine, In a redox reaction, which reactant is the oxidizing agent and which one…

Q: 4. Determine the oxidation number of cach atom in the equation Ca(s)+2H2O(1)¬Ca(OH)2(s)+H2(g}to…

A:

Q: For the reaction Cl₂ + 2 Br⁻ → 2 Cl⁻ + Br₂, which of the following statements is not correct? A.…

A:

Q: Consider the following reaction: 2 Ag(s) + 2cI- (aq) + 2 H2O (l) →2 AgCI(s) + H2(g) + 2 OH- (aq) a)…

A:

Q: Given the following reaction equation:     Al (s)     +      HNO3 (aq)    →   Al (NO3)3 (aq)   +…

A: Redox reaction when oxidation and reduction takes place simultaneously in a reaction, it is called a…

Q: Given the reaction: Mg (s) + 2 AgNO3 (aq) → Mg(NO3)2 (aq) + 2 Ag (s)    Which type of reaction is a…

A: Given above reaction is a redox reaction ?

Q: 4.36 What is an oxidation number? How is it used toidentify redox reactions? Explain why, except for…

A: An ion is formed when an element loses or gains an electron. Two types of ions are formed: Cation:…

Q: 1. Determine the oxidizing and reducing agents. a) 3H2(g) + N2(g) ---> 2NH3 (g, b) 2C2H6(g) + 702(g)…

A: Hello. Since you have posted multiple questions, the first question shall only be solved in this…

Q: Which of the following are redox reactions? For those thatare, indicate which element is oxidized…

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

Q: N,H4 + CIO"+ H,0 CI + 2NH2OH In the above reaction, the oxidation state of chlorine changes from to…

A: In the given reaction: The oxidation number of Cl in ClO-: Let the oxidation number of Cl is y, then…

Q: CONSIDER the following redox reaction: Sn + 4HNO3 → SnO2 + 4NO2 + 2H2O Which substance is the…

A: We have reaction of Sn and HNO3 , we have to predict oxidizing agent, substance oxidized, change in…

Q: Complete and balance the following redox reaction in acidic solution ClO3- (aq) + Cl- (aq) --> Cl2…

A: Since,  We know that,  Balanced redox equation means number of atom and charge in reactant side is…

Q: 1. Write the complete redox reaction for cellular respiration. 2. Which substance is the reducing…

A: A redox reaction is one that involves simultaneous oxidation and reduction. The reactant that gets…

Q: Br+ 6HCIO—ЗСІ, + BrO;'+ 3н,0 In the above reaction, the oxidation state of bromine changes from | to…

A: The balanced redox Chemical Reaction given in the question is -   Br- +6HClO -----> 3Cl2 + BrO3-…

Q: NO, + Ni+ 3H+. →Ni²+ + HNO2+ H,0 In the above reaction, the oxidation state of nitrogen changes from…

A: The oxidation half and the reduction half reaction for the given reaction is shown in equation (1)…

Q: state the oxidizing agent, the reducing agent,

A: An oxidizing agent is defined as an species which gains electrons and undergoes reduction in a…

Q: Consider the following reaction used in Breathalyser tests: 16H⁺(aq) + 2Cr₂O₇²⁻(aq) + C₂H₅OH(ℓ) →…

A:

Q: In the reaction 2 HCl(aq) + Zn(s) ⟶ZnCl2(aq) + H2(g), what is the reducing agent and what is the…

A: Oxidising agent : The substance that is reduced in the reaction is the oxidizing agent because it…

Q: 6CIO, + BrO,¨+ 3H20BR" + 6CI0,+ 6H* In the above reaction, the oxidation state of bromine changes…

A: Given balanced chemical equation, 6 ClO2 + BrO3– + 3 H2O → Br– + 6 ClO3–+ 6 H+

Q: 1. Consider the following redox reaction: MnO, + 5 Fe* + 8H* Mn2* + 5 Fe* + 4H,0 Which of the…

A: Oxidation number is the imaginary or fictitious charge developed on an atom if all shared electrons…

Q: To estimate the blood alcohol level, a device called Breathalyzer can be used. It contains…

A: In this reaction, the dichromate ion Cr2O72- is reduced to Cr3+  oxidation state of chromium in…

Q: Which of the following reactions is a redox reaction? (a) K2CrO4 + BaCl2 → BaCrO4 + 2KCl (b) Pb2+ +…

A: Redox reactions are the reactions in which reduction and oxidation occur simultaneously.  We need to…

Q: 2. The reaction below is an oxidation-reduction reaction. 2AGNO3 (aq) + Pb (s) 2Ag (s) + Pb(N0s)2…

A: Given reaction,    2 AgNO3(aq) + Pb(s)  →  2 Ag(s)  + Pb(NO3)2(aq)

Q: help! Classify the following redox reaction as a combination, decomposition, or displacement…

A: The reaction in which a molecule breaks or decompose to form new molecule is termed as decomposition…

Q: In a redox reaction, which reactant is the reducing agent?

A: A redox reaction is a type of reaction in which one element gets oxidized and another element gets…

Q: 3. Is it possible to have a reaction in which oxidation occurs and the reduction does not? Explain.…

A: If a species/element losses electron then it will be a oxidation reaction. If a species/element…

Q: Question attached

A: A chemical reaction is symbolic representation of the conversion of substances to new substances. In…

Q: Which substance functions as a reducing agent in the following redox reaction? Li+ MgO > Li20 + Mg…

A: Answer: Theory: The substance will act as a reducing agent, which itself oxidises in the reaction.…

Q: Decide whether each chemical reaction in the table below is an oxidation-reduction ("redox")…

A: Redox reaction is the reaction in which oxidation and reduction reaction take place simultaneously.…

Q: For the following reaction, identify the oxidation number for each element in the reactants and…

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

Q: Chlorine gas can be obtained by the reaction of 4 H + + MnO2 (s) + 2 Cl- → Mn2 + + Cl2 (g) + 2 H2O.…

A: The given statement is false because in given reaction MnO2 species is reduced to Mn2+ where as Cl-…

Q: The blood alcohol C2 H5 OH level can be determined by titrating a sample of blood plasma with an…

A: The question is based on calculation of mass percent of alcohol present in the blood sample. we have…

Q: Consider the same chemical equation: 14 H+(aq) + 6Fe2+(aq) + Cr2O72-(aq) ⟶ 6Fe3+(aq) + 2Cr3+(aq) +…

A: Redox reaction is a chemical reaction in which oxidation (loss of electron) and (reduction gain of…

Q: 1202 + 8A|2S3 --> 8A|2O3 + 358 Question 2: you should have noted that the reaction in question 1 is…

A: Redox reaction:Redox reaction is a type of chemical reaction in which the oxidation states of atoms…

Q: Which one is the oxidized in the following reaction? 2 H20+ Al + MnO AKOH)+MnO2 Oa This is not a…

A: The Oxidation is:

Q: T Identify which element underwent oxidation or reduction in the following redox reaction: Explain…

A:

Q: Consider the dichromate polyatomic ion, what is the oxidation number of chromium, Cr?

A: Formula for cromate ion = Cr2O72-

Q: 2. In a chemical analysis, a solution of dichromate ions is reacted with an acidic solution of…

A:

Q: Identify the oxidized substance, the reduced substance, the oxidizing agent, and the reducing agent…

A: Given :-  Cu(s) + 2AgNO3(aq) → 2Ag(s) + Cu(NO3)2(aq)  To determine :-  Species oxidized  Species…

Q: The following equation represents an oxidation-reduction (redox) reaction. CuSO4  +  Zn  →  Cu  +…

A: Redox reaction are those in which oxidation of one species and reduction of other species takes…

Q: 1. Fill in the blanks in the statements below based on the following reaction. LOs(s) + 5 CO(g) →…

A: Given Reaction:- I2O5(s)  + 5 CO(g) → I2(g) + 5 CO2(g)

Redox Reactions

Redox reactions are considered to be the chemical reactions involving both oxidation and reduction processes. They are actually oxidation-reduction reactions. The term redox is made from two words where “red” comes from reduction and “ox” comes from oxidation. During a redox reaction electron transfer takes place in such a way that one chemical compound gets reduced and the other one gets oxidized.