Calculate the oxidation number of the underlined element.   a)  HClO4   b)  CH4        c)  PO4 3-         Consider the photosynthesis reaction:   CO2  +  H2O  →  CH2O  +  O2

Q: 1. Identify the oxidation number of the specified element in each of the following entities: (f) N…

A: Since you have asked multiple parts we will solve the first three parts for you. If you want any…

Q: 3. Use the changes in oxidation numbers to identify which atoms are oxidized and which are reduced…

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Q: 2CrO42- + 3Pb+ 5H2O2Cr(OH)3 + 3HPbO2-+ OH- In the above redox reaction, use oxidation numbers to…

A: The substance whose oxidation increases in the reaction loses electrons. And since loss of electron…

Q: NO + 3C1O3 + 3H3CIO, + HNO3 + H₂O In the above reaction, the oxidation state of nitrogen changes…

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Q: Balance the reactions below using the change in oxidation number method. Show complete solutions.…

A: The balanced equations are

Q: 11. Given the reaction: Pb*2 (aq) + O2(g) > Pb+4 (aq)+ 0(aq) a. Write the oxidation half-reaction.…

A: (a) The oxidation half-reaction as follows,

Q: Rank the following according to oxidation number on chlorine.  (#1 lowest) HOCl, Cl2, AlCl3, ClO2

A: Let the oxidation state of Cl in HOCl be x. The sum of oxidation states of H, O and Cl is 0 since…

Q: Given the compound, Pb(NO2)2, what is the oxidation number of each element? Pb: N: O:

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Q: Balance the reaction, do not leave any fractions, don't leave anything blank, then answer the…

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Q: Balance the reaction, do not leave any fractions, don't leave anything blank, then answer the…

A: Given,  Balance the reaction, do not leave any fractions, don't leave anything blank, then answer…

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

A: Oxidation number can be defined as the number assigned to elements in case of loss and acceptance of…

Q: In which reaction does the oxidation number of hydrogen change? A) HCl (aq) + NaOH (aq) → NaCl (aq)…

A: Answer Option B. 2Na(s) + 2H2O(l)  → 2NaOH(aq) + H2(g)

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

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Q: 2N,(g) + 0,(8) → 2LizN(s) (a) 2N,0(g) (b) 6Li(s) + N2(g) (c) Ni(s) + Pb(NO3)2(aq) → Pb(s) +…

A: In the given redox reaction, indicate the changes in the oxidation numbers of the elements---

Q: 7. Consider the following reaction at equilibrium for the questions below: Zn (s) + Cu2+ (aq)  Zn2+…

A: Oxidation is the loosing of electrons and reduction is the gaining of electrons. Who give electron…

Q: HBrO3(aq) +Bi(s) à HBrO2(aq) +Bi2O3 balance the eqn and answer the ff a. oxidation state of…

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

Q: PART B. Following the example, provide the oxidation number that changed, balance the chemical…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first three parts…

Q: CIO4 + Hg-CIO3¯ + HgO In the above reaction, the oxidation state of chlorine changes from e to 8.…

A: The combining capacity of an element when it bonded with other elements is known as oxidation state…

Q: II. balance the molecular equation I emphasizing the gain and loss of electron ., substance…

A: Given reactions are :  1. Na2Cr2O7 + FeCl2 + HCl -----------> CrCl3 + FeCl3 + NaCl  2. HNO3 + HI…

Q: In which reaction does the oxidation number of hydrogen change? A CaO (s) + H2O (/) → Ca(OH)2 (s) B)…

A: We have to identify the following given reactions in which the reaction does the oxidation number of…

Q: Assign oxidation numbers to the underlined element.  1) K                                      2)…

A: Oxidation number: The covalent bond between the atoms of different electronegativity is polar. If we…

Q: alance these equations using the change-in-oxidation-number method: CrCl3+MnO2+H2O——> MnCl2+H2CrO4…

A: The detailed solution is provided in the next step:

Q: 9. State which element is being oxidized and which is being reduced, and name the oxidizing and…

A: Oxidation is the process in which oxidation number increases while in reduction, oxidation number…

Q: Indicate whether each of the following statements is trueor false:(a) If something is oxidized, it…

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

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

A: The sum of the oxidation numbers in a compound must equal to zero.

Q: 1. Which of the following is the correct oxidation number of the carbon atom in a bicarbonate ion,…

A: Oxidising  agents -  Which increases oxidation  number.  Reducing  agents-  Which  decreases…

Q: Consider the reaction below.   S2O32‒(aq) + 4 Cl2(g) + 5 H2O(l) → 2 SO42‒(aq) + 8 Cl‒(aq) + 10…

A: Oxidation number of an element represents the number of electrons lost or gained by the element. The…

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: Balance these equations using the change-in-oxidation-number method: HNO3 + S ——> NO2 + H2SO4 + H2O…

A: Here, we can balanced the reaction you provided such as follows: S + 6 HNO3  ——>  H2SO4 + 6 NO2 +…

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: Fill in the blank What are the oxidation states of carbon atoms I and Il in the following reaction?…

A: Oxidation state is the charge when atoms form covalent bond. It is given by us.

Q: Balance the reactions below using the change in oxidation number method.  KBr + KClO2 + H2SO4 → Br2…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 2. For each reaction shown, identify the oxidizing agent and the reducing agent (for the forward…

A: Oxidizing agent : the reactant that gains electrons from the other reactant and oxidizes it.…

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: 4.70 Assign oxidation numbers to each element in the following compounds: (a) NO2 (b) SO3 (c) COCI2…

A: 4.70 The oxidation number of atom denotes the number of electrons that atom loses or gain in a…

Q: 1. Determine the oxidation number of each element in these substances: a. S203 b. O2 c. Al2(SO4)3 2.…

A: We have to follow all the rules to find oxidation number of these elements.  Some of the important…

Q: When determining oxidation numbers, how do I find out the overall charge of a compound? For…

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Q: Which are oxidation reactions? * Ag* → Ag Ni3+ → Ni2+ Silver ion to Silver Nickelic to Nickelous CI…

A: If oxidation number increases then oxidation takes place. Thus,

Q: Balance the following reactions below using the change in oxidation number method. 1. PЬО, + НBr —…

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Q: a. In which of the following reactions does the oxidation number of carbon show the greatest…

A: Given,  A. CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)B. C(s) + O2(g) → CO2(g)C. 2CO(g) + O2(g) → 2CO2(g)D.…

Q: 1. Determine the oxidation number of each element in these substances: a. S203 b. O2 c. Al:(SO.)s 2.…

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Q: Balance the reactions below using the change in oxidation number method. KBr + KClO2+ H2SO4 → Br2 +…

A: Note: Since you have asked multiple questions, we will solve the first for you. If you want any…

Q: 2. Complete the redox reaction below indicating the species being reduced and the one being…

A: The Redox Reaction is given as - MnO4-(aq) + Br-(aq) + H2O(l) ---> MnO2(s) + BrO3-(aq) + OH-(aq)…

Q: I2(s) + OCl-(aq) → IO3-(aq) + Cl-(aq) Referring to the equation above, what is the oxidation number…

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Q: Explain the difference between the charge of an ion, such as acharge of 2- for an O2- ion, and the…

A: The charge (or the actual charge) of an ion is due to the complete transfer of electrons. For…

Q: Balance the reactions using the change in oxidation number method: a) KBr + KClO2 + H2SO4 → Br2 +…

A: Reaction with oxidation no- balanced equation-