(a)
Interpretation:
Given chemical equation has to be balanced and also the oxidizing agent and reducing agent has to be identified.
Concept Introduction:
In
In redox reactions, reducing agent is the one that gets oxidized by causing reduction. These agents can be ions, elements, or even compounds. In reduction, the oxidation number decreases due to gain of electrons.
(a)
Answer to Problem K.18E
Balanced chemical equation is
Explanation of Solution
The given reaction is written as follows;
The above chemical equation has the same number of atoms of elements equal on both sides. Hence, this itself is a balanced equation.
Oxidation number of the atoms present in the above equation is indicated as follows;
From the above equation, it is found that the oxidation state of carbon is increased from
The oxidation state of hydrogen decreases from
(b)
Interpretation:
Given chemical equation has to be balanced and also the oxidizing agent and reducing agent has to be identified.
Concept Introduction:
Refer part (a).
(b)
Answer to Problem K.18E
Balanced chemical equation is;
Oxidizing agent is
Explanation of Solution
The given reaction is written as follows;
Balancing Chlorine atoms: In the left side of the equation there is one chlorine atom while on the product side there are two chlorine atoms. Adding coefficient
Balancing Oxygen atoms: In the left side of the equation there are seven oxygen atoms while on the product side there are eight oxygen atoms. Adding coefficient
Oxidation number of the atoms present in the above equation is indicated as follows;
From the above equation, it is found that the oxidation state of chlorine is increased from
The oxidation state of oxygen decreases from
(c)
Interpretation:
Given chemical equation has to be balanced and also the oxidizing agent and reducing agent has to be identified.
Concept Introduction:
Refer part (a).
(c)
Answer to Problem K.18E
Balanced chemical equation is
Explanation of Solution
The given reaction is written as follows;
Balancing chlorine atom: In the reactant side, there are two chlorine atoms while on the product side, there is one chlorine atom. Adding coefficient
Balancing fluorine atom: In the reactant side, there are two fluorine atoms while on the product side, there are six fluorine atoms. Adding coefficient
Oxidation number of the atoms present in the above equation is indicated as follows;
From the above equation, it is found that the oxidation state of chlorine is increased from
The oxidation state of fluorine decreases from
Want to see more full solutions like this?
Chapter F Solutions
Chemical Principles: The Quest for Insight
- 4.22 Generally, an excess of O2 is needed for the reaction Sn+O2SnO2 . What is the minimum number of moles of oxygen required to oxidize 7.3 moles of tin?arrow_forwardWrite balanced net ionic equations for the following reactions in acid solution. (a) Liquid hydrazine reacts with an aqueous solution of sodium bromate. Nitrogen gas and bromide ions are formed. (b) Solid phosphorus (P4) reacts with an aqueous solution of nitrate to form nitrogen oxide gas and dihydrogen phosphate (H2PO4-) ions. (c) Aqueous solutions of potassium sulfite and potassium permanganate react. Sulfate and manganese(II) ions are formed.arrow_forwardOne of the few industrial-scale processes that produce organic compounds electrochemically is used by the Monsanto Company to produce1,4-dicyanobutane. The reduction reaction is 2CH2CHCH+2H++2eNC(CH2)4CN The NC(CH2)4CN is then chemically reduced using hydrogen gas to H2N(CH2)6NH2, which is used in the production of nylon. What current must be used to produce 150.kg NC(CH2)4CN per hour?arrow_forward
- Balance the following equations, and use oxidation numbers to decide which of the following are redox reactions. For each redox reaction, identify:The species being oxidized ii) The species being reduced iii) The oxidizing agent iv) The reducing agent SiO2(s) + HF(g) →SiF4(g) + H2O(l)arrow_forwarda)Sodium thiosulfate, Na2S2O3, is used as a fixative in photography. What is the oxidation number of each of the elements in sodium thiosulfate (NOTE – the two sulfur atoms do not have the same oxidation state)?b)What is the oxidization number of Co in K3(CoF6)arrow_forwardBalance the following chemical equation. Fe3O4(s) + H2(g) → Fe(s) + H2O(l)arrow_forward
- Balance the following equations by oxidation-reduction methods; note that three elements change oxidation state.Co(NO3)2(s) ⟶ Co2O3(s) + NO2(g) + O2(g)arrow_forward(A) if both sentences are true,(B) if both sentences are false,(C) if the first sentence is true but the second is false, and(D) if the first sentence is false but the second is true. 1. In a redox reaction, the oxidation number of iron changed from +2 to +3; thus, sulfur is a reducing agent. In a redox reaction, the oxidation number of nitrogen was unchanged; thus, nitrogen is an oxidant. 2. In a redox reaction, the reducing agent is oxidized and it gains electrons. In a redox reaction, the oxidizing agent is reduced and it gains electrons. 3. Bending stress is also known as flexural stress. The test used in observing the mechanical strength of chocolate is the three-point bend test. 4. The flexural strength of materials may be expressed in Pascals. Magnesium is more reactive than silver; therefore, magnesium corrodes faster than silver with the aid of air, oxygen, and sea water.arrow_forward2. (Balance the equation) FeCl+NaOH>Fe(OH);+Naclarrow_forward
- The molecular weight of sperm whale myoglobin is 17.8 kDa.17.8 kDa. The myoglobin content of sperm whale muscle is about 80 g · kg−1.80 g · kg−1. In contrast, the myoglobin content of some human muscles is about 8 g · kg−1.8 g · kg−1. Compare the amounts of O2O2 bound to myoglobin in human muscle and in sperm whale muscle. Assume that the myoglobin is saturated with O2,O2, and that the molecular weights of human and sperm whale myoglobin are the same. How much O2O2 is bound to myoglobin in human muscle? How much O2O2 is bound to myoglobin in whale muscle? The amount of oxygen dissolved in tissue water at 37°C37°C is about 3.5×10−5 M.3.5×10−5 M. What is the ratio of myoglobin‑bound oxygen to dissolved oxygen in the tissue water of sperm whale muscle?arrow_forwardPredict the product(s) and write a balanced equation for each of the following redox reactions:(a) N2(g) + H2(g) →(b) NaClO3(s) →Δ(c) Ba(s) + H2O(l) →arrow_forwardIn the reaction FeCl 3 (s) + H2 (g) → 3HCI (g) + Fe (s), Cl acts as a reducing agent neither a reducing nor oxidizing agentarrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
- Chemistry for Engineering StudentsChemistryISBN:9781285199023Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning