What is the oxidation number of chromium in the ionic compound ammonium dichromate, (NH4)2Cr₂O7? a. +3 d. +6 b. +4 e. +7 C. +5 What is the oxidation number of carbon in the ionic compound potassium carbonate, K₂CO3? +6 +7 a. +3 b. +4 C. +5 d. e.

Q: b. For the unbalanced redox reaction below, the O atom is always in the 2-oxidation state. CIO5™ +…

A: Any species that oxidizes the other substance in a redox reaction and itself gets reduced is called…

Q: Specify which of the following are oxidation-reduction reactions, and identify the oxidizing agent,…

A: oxidation is defined as increase in oxidation state of the element. while reduction is defined as…

Q: 5. Balance the following redox reactions in the given conditions. You do not need to show all of…

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Q: 5.What

A: 1) Oxidation number of Rb = +1  2) Oxidation number of O = -2  3) Oxidation number of Tc = Findout…

Q: For each of the following, Balance the equation, Identify the reactant oxidized and the reactant…

A: See answer in explanationExplanation:

Q: A chemical reaction has the equation 2AgNOg (aq) + Zn (s) -› 2Ag (s) + Zn(NOg)2 (aq). What type of…

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Q: For the following balanced redox reactions, determine which element was oxidized and which element…

A: a. Ni is oxidized and Cl is reduced . b.Fe is reduced Al is oxidized. c.Iodine is oxidized , Cl is…

Q: Classify each reactant as an oxidizing agent or a reducing agent. a. Zn(s) + 2 H*(aq) → Zn²“(aq) +…

A: Given reaction a. Zn(s)  + 2 H+ (aq)  → Zn2+(aq) + H2(g)b. Fe3+(aq)  + Al(s)  → Al3+(aq)  +  Fe(s)c.…

Q: 2. Write the oxidation and reduction half-reaction represented in each of these redox equations. a.…

A: Introduction Oxidation is the process of losing electrons. Reduction describes the increase in…

Q: Identify the oxidation number of the atom/s 1. NaCl 2. Cu2O 3. CaH2 4. S8 5. H2O2

A: We know that,. For neutral atom, some of oxidation number is equal to zero. If molecule present in…

Q: 1a.In which of the following substances does nitrogen exhibit the lowest oxidation number? A. NaNO2…

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Q: 36. How many electrons were lost/gained in the following redox reaction   2K2Cr2O7 + 2H2O + 3S 4KOH…

A: A redox reaction is a reaction in which oxidation and reduction occurs simultaneously.

Q: Which of the following represents an oxidation half-reaction? a. Zn2+ (aq) → Zn(s) b.Cl2(g)…

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Q: The oxidation number of chromium in sodium dichromate, Na2Cr2O7, is a. +1 b. +2 c. +3 d. +4 e. +5 f.…

A: Defination of Oxidation number: The oxidation number is basically the count of electrons that atoms…

Q: What is the oxidation number of S in SO42-?  -4 +2 +6 4.+4

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

Q: 1. What is the oxidation number of S in each of the following substances? • H₂S SO3 H₂SO4 • SO₂ • ●…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: Give the oxidation number of the underlined atoms in the following molecules or ions: ( ach) 1. CH4…

A: “Since you have posted multiple questions, we will provide the solution only to the first five…

Q: Balance each of the following oxidation-reduction reactions. a. Co(s) + Br2 (1) → CoBr3 (s) b. Al(s)…

A: Count the number of atoms of each element present on both sides of the chemical reaction and then,…

Q: Consider the reaction of 0.161 g of aluminum metal with 50.0 mL of 0.235 M Co(NO₃)₂. a. Which metal,…

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

Q: 4. Give the oxidation number of the underlined atoms in the following molecules and ions: a. ClFb.…

A: “Hey, this is multiple sub-parts questions posted, so I will answer three sub-parts   . If you…

Q: d. For the unbalanced redox reaction i. ii. Br + MnO4 → Br2 + Mn²+ i. ii. Which is oxidizing agent…

A: Answer: Any specie that oxidizes others in a redox reaction and itself gets reduced is called as…

Q: II. Identify the oxidizing agent and reducing agent in each reaction. 1. 2H₂ + O2 → 2H₂O 2. Zn+S →…

A: Here we are required to identify the oxidizing and reducing agent.

Q: Which of the following is a redox reaction? O a. 2KB + F2 2KF + Br2 O b. 2HCI+ Mg(OH)2→2HOH + MgCl2…

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Q: 1. A 125 mL sample of orange juice was titrated using a redox reaction to the equivalence point with…

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Q: 8 H+(aq) + Cr2O72-(aq) + 3 H2S (aq)----> 2 Cr+3 (aq) + 7 H2O (l) + 3 S (s) a. Assign oxidation…

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Q: 4. Identify the complete redox reaction for a Fe|Fe³+||Cu²+ Cu cell. A. 2 Fe (s) + 3 Cu (s) 2 Fe³+…

A: The IUPAC notation of Galvanic cell is  Anode || Cathode  || represents salt bridge  At anode…

Q: reducing agent?

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

Q: 44. ** Questions # 43 through # 48 use the half reaction method to balance the following skeletal…

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Q: which of the following reactions is not a redox reaction? a. C2H4 + 3 O2 -> 2 CO2 +2 H20 b. 2LiBr…

A: Since in a redox reaction, there will always be change in oxidation state of species This is because…

Q: Reaction 1: 4Ag(s) + 2H2S(g) + O2(g) + 2Ag2S(s) + 2H₂O(g) a. Assign oxidation states to all elements…

A: Oxidation number (or state) is the hypothetical charge developed on an atom when it is separated…

Q: Assign oxidation numbers to each atom in each substance. a. CH₂O C: H: b. NH3 N:01 H: c. Rb2SO4 00:0…

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Q: The oxidation number of nitrogen given for all the following species is correct except a. N2 (0). b.…

A: The oxidation number is the residual charge left on an atom in a compound when all other species are…

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: For each of the following reactions, identify the elements that are oxidized and reduced, the…

A: 4Fe(s) + 3O2(g) ---> 2Fe2O3(s) Element oxidised : Fe Element reduced : O Oxidising agent : O2…

Q: What are the oxidation number of hydrogen in H₂O and H₂O₂ molecules respectively? A. + 1 B. -1 C. -1…

A: A number designated to an element along with a positive or a negative charge according to the…

Q: A. Balance the following redox reactions using the half-reaction method. B. Identify the oxidizing…

A: Oxidation is defined as increase in oxidation state of the element.It can also be defined as…

Q: What is the oxidation state of element X in the compound H3X30? a. +3 b. +2 с. +1 d. 0 е. -1 f. -2…

A: The answer is given as follows  Option 2 is correct X = + 2