cl2(aq)+2br-(> 2cl-(aq)+br2(aq) a. bromine (br) loses an electron, so it is the reducing agent. D. C changes from oxidation number +4 to +2. (Note: the oxidizing and reducing agents can be the same element or compound, as in disproportionation reactions). Cloudflare Ray ID: 60eaed704be23ddf Cr changes from oxidation number +3 to 0. Write five observation of cotton ball and pine cone of the solid. Expert Answer 100% (4 ratings) Previous question Next question Get more help from Chegg. Mg + F2 → MgF2 You may need to download version 2.0 now from the Chrome Web Store. Favourite answer. Relevance. Bromine (Br) gains an electron, so it is the reducing agent. This preview shows page 17 - 21 out of 24 pages. By giving up electrons, it reduces the MnO 4- ion to Mn 2+. Reducing agents are typically electropositive elements such as hydrogen, lithium, sodium, iron, and aluminum, which lose electrons in redox reactions. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. All you have to do is determine which reactant is being reduced. © 2021 Education Expert, All rights reserved. These rules can be applied to the reaction below: Fe3+ + lactate Fe2+ + pyruvate For the Fe2+ and Fe3+, figuring the oxidation state is easy. It reduces F to HF by the addition of hydrogen. Zn (s) + 2HCl (aq) mc014-1. Cl₂ is the oxidizing agent because its oxidation state changes from 0 to - 1. Therefore, Cu (s) is the reducing agent and causes Ag+ (aq) to gain electrons. pisgahchemist. How many grams are in 3.4x10^24 molecules of ammonia? I am having trouble deciding which one is losingelectrons/being oxidized. O, has been reduced to H 2 O by the addition of hydrogen. What is the oxidation number for S in the compound SO3? Which best identifies why the rusting of an iron nail in the presence of water and oxygen is an oxidation-reduction reaction? Thus, the MnO 4- ion acts as an oxidizing agent in this reaction. Bromine is giving or losing electrons and is reducing the chlorine atoms so Bromine is the reducing agent. (c) CO is a reducing agent. Table sugar completely dissolved in water is an example of a? Ask your question. chlorine (cl) gains an electron, so it is the reducing agent. Pages 24. Bromine has lost 5 electrons. Click here to get an answer to your question ️ What is the reducing agent in the following reaction below 2mno4 + br-? 4 years ago . The CO is the reducing agent. The equation shows the reaction between zinc metal and hydrochloric acid. Chlorine (Cl) loses an electron, so 1 Answers. How much glycerol (is liquid supplied at 100%) would you need to make 200 mL of 20% v/v (volume/volume) glycerol solution? A reducing agent is a term in chemistry that refers to an atom which donates electrons in an oxidation -reduction reaction. Please enable Cookies and reload the page. Which answer best describes what is happening in the following reaction? Which best describes the reducing agent in the reaction below? Cu2+ (aq) + Zn (s) --> Zn2+ (aq) + Cu (s) Copper is reduced. Conversely, the species that donates electrons is called the reducing agent; when the reaction occurs, it reduces the other species. Performance & security by Cloudflare, Please complete the security check to access. Which is a good example of a contact force? A reducing agent is one of the reactants of an oxidation-reduction reaction which reduces the other reactant by giving out electrons to the reactant.If the reducing agent does not pass electrons to other substance in a reaction, then the reduction process cannot occur. Mg+NiO2+2H2O -----> Mg(OH)2+Ni(OH)2? The CO is the reducing agent. The CO is the reducing agent. Because chlorine makes it possible for sodium to be oxidized, chlorine is the oxidizing agent. Iron is being oxidized. Answer Save. 1 Answer. Reducing agents "reduce" (or, are "oxidized" by) oxidizing agents. Lily. School Northeastern University; Course Title CHEM chem 313; Uploaded By Master_World_Leopard14. Relevance. Lv 7. hydrogen. (a) NH 3 is the reducing agent because it gets oxidised to NO by the removal of hydrogen and addition of oxygen. C changes from oxidation number +2 to +4. The CO is the reducing agent. The atom that gains those electrons is said to be reduced. b. K 2 Cr 2 O7 + 3H 2 C 2 O 4 + _H 2 SO 4 → Cr 2 (SO 4) 3 + _H 2 O + 6CO 2 + K 2 SO 4 What is the reducing agent in this reaction In other words, what is oxidized is the reducing agent and what is reduced is the oxidizing agent. Fe---->Fe2++2e-Which statement best describes what is taking place in this half reaction? In the reaction that forms sodium chloride from the elements sodium and chlorine, sodium is oxidized, and chlorine is reduced. Identify the reducing agent in the following reactions (a) 4NH3 + 5O2→ 4NO + 6H2O (b) H2O + F2 → HF + HOF (c) Fe2O3 + 3CO → 2Fe + 3CO2 (d) 2H2 + O2 → 2H2O NCERT Class X Science - Exemplar Problems Chapter_Chemical Reactions And Equations 2 See answers kvnmurty kvnmurty A) The oxidation state of Oxygen is reduced, from 0 to -1. Hydrides (compounds that contain hydrogen in the formal -1 oxidation state), such as sodium hydride, sodium borohydride and lithium aluminum hydride, are often used as reducing agents in organic and organometallic reactions. Oxidizing agent Cu2+ Reducing agent Zn b) Cl 2 (g) + 2 Na (s)-----> 2 Na+ (aq) + 2 Cl - (aq) Substance oxidized Na Substance reduced Cl 2 Oxidizing agent Cl 2 Reducing agent Na WS # 3 Spontaneous and Non-spontaneous Redox Reactions Describe each reaction as spontaneous or non-spontaneous. The reducing agent undergoes oxidation (loss of electrons) in a chemical reaction. Which best describes the reducing agent in the reaction below? Bromine (Br) gains an electron, so it is the reducing agent. Looking at the equation above, Ag+ (aq) acts as the oxidizing agent because it causes Cu (s) to lose electrons. 1 See answer namaniya4950 is waiting for your help. Zinc is oxidized. 2Na(s) is oxidized to Na + (the oxidation number of sodium goes up from 0 to +1). jpg (aq) mc004-2. Log in. Which best describes the reducing agent in the reaction below? • A reducing agent is an element or a compound that looses or donates electrons in a chemical reaction. 2C8H18 + 25O2 16CO2 + 18H2O +6. Oxalic acid, on the other hand, is a reducing agent in this reaction. Bromine is losing electrons, so it is the reducing agent. 2 Answers. Consider the half reaction below. Favorite Answer. C. C changes from oxidation number +2 to +4. 86. Electrons are transferred. Testing for presence of reducing agent: Add an oxidising agent, e.g. Which best describes the reducing agent in the reaction below? Cr changes from oxidation number +2 to +3. Which substance is serving as the reducing agent in the following reaction? Which substance is serving as the reducing agent in. Cr changes from oxidation number +3 to 0. Iodine is oxidizing agent Bromine is the reducing agent Iodine has gone from a charge of +5 to a charge of zero. cl2(aq) + 2br(aq) 2cl(aq) + br2(aq)bromine (br) loses an electron, so it is the reducing agent. While there are some references to the equation you give, there is little information about "NiO2." Nitrogen and … Here, Ti losses 4 electrons and its oxidation state is changed from 0 to + 4 and Cl₂ gains one electron and its oxidation state is changed from 0 to - 1. The permanganate ion removes electrons from oxalic acid molecules and thereby oxidizes the oxalic acid. 5.05 g 10. Since it isn't bonded to anything, its oxidation state is equal to its charge. C14H10O2 [1] [Total 2 marks] 5. This means that Iodine has gained 5 electrons. Which best describes the reducing agent in the reaction below? A reducing agent (also called a reductant or reducer) is an element or compound that loses (or "donates") an electron to an electron recipient (oxidizing agent) in a redox chemical reaction. The CO is the reducing agent. (Recall that O has an oxidation number of -2.) agent, and oxidants get reduced by a reducing agent. Because sodium makes it possible for chlorine to be reduced, sodium is the reducing agent in this reaction. (a) (i) Describe a simple chemical test that would show that but-2-enal is an aldehyde. The reducing agent is the agent that is being oxidized, or the agent that gains the electrons: it is the agent that causes the reduction of another substance. Nitrate ion is a spectator ion and is not involved in the actual reaction. The Cr2O3 is the oxidizing agent. The Cr2O3 is the oxidizing agent. Chlorine is gaining electrons so it is being reduced. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. 5 years ago. Bromine losses an electron and therefore it is the reducing agent while chlorine gains electrons and … Your IP: 159.65.38.93 1. Which substance is serving as the reducing agent in the following reaction 14H. Hence option A is correct. The mechanism that scientist think is most important is? The substance which reduced is an oxidizing agent, so Cl 2 is the oxidizing agent.. Na(s) ---> Na + +e-. So Ammonia is reducing agent. 1. Identify the oxidizing agent in the reaction: Cl2 + 2Br- → 2Cl- + Br2? Cl 2 +2e → Cl-. So, Ti is the reducing agent because its oxidation state changes from 0 to + 4. b. bromine (br) gains an electron, so it is the reducing agent. Join now. Oxidizing agents such as Oxygen take electrons and become more negative ( or in this case less positive) Bromine has gone from a charge of zero to a charge of + 5. Three Mechanisms drive plate motion: mantle convection, slab pull, and ridge push. Log in. Aqueous potassium manganate (VII) to the reducing agent; Shake the mixture; The aqueous potassium manganate (VII) is decolourised; The table below shows the common and important reducing agents. Explanation: 2Na(s) + Cl 2 (g) → 2NaCl(s). If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Another way to prevent getting this page in the future is to use Privacy Pass. The Cr2O3 is the … Thus, The right answer is Ti is the reducing agent … 1. jpg ZnCl2 (aq) + H2 (g) What is the theoretical yield of hydrogen gas if 5.00 mol of zinc are added to an excess of hydrochloric acid? (ii) Complete and balance the equation for this reaction, using [H] to represent the reducing agent. But-2-enal, CH3CH=CHCHO, is a pale yellow, flammable liquid with an irritating odour. jpg 2Clmc004-3. namaniya4950 namaniya4950 17.12.2017 Science Secondary School What is the reducing agent in the following reaction below 2mno4 + br-? chlorine (cl) loses an electron, so it is the reducing agent. Refer to the unbalanced equation below when answering this question. c. chlorine (cl) loses an electron, so it is the reducing agent. Which of the following is the reducing agent in the following reaction? Answer Save. Cr changes from oxidation number +3 to +2. Add your answer … Join now. bromine (br) gains an electron, so it is the reducing agent. Cl2 is the oxidizing agent. (b) H 2 O is the reducing agent because of the addition of electronegative F to get oxidised to HOF. Na(s) is the reducing agent in the reaction below. jpg (aq) + Br2 (aq) Bromine (Br) loses an electron, so it is the reducing agent. which best describes the reducing agent in the reaction below? Cl2 (aq) + 2Brmc004-1. 2Na Cl2(aq) + 2Brmc004-1.jpg(aq) mc004-2.jpg 2Clmc004-3.jpg(aq) + Br2(aq) Bromine (Br) loses an electron, so it is the reducing agent. • Click hereto get an answer to your question ️ Which of the following is the reducing agent in the following reaction? The oxidizing agent: is the agent that has been reduced via gaining electrons. Cl2(aq) + 2Br-(aq) ----->2Cl-(aq) + Br2(aq) a. Bromine (Br) loses an electron, so it is the reducing agent. B. Cr 2 O 7 2-+6S 2 O 3 2-+ 14H + =2Cr 3+ + 3S 4 O 6 2-+7H 2 O. a)Cr 2 O 7 2- b)S 2 O 3 2-c)H + d)Cr 3+ e)S 4 O 6 2-f)H 2 O. g)none of these; this is not a redox reaction. A reducing agent is thus oxidized when it loses electrons in the redox reaction. The Cr2O3 is the oxidizing agent. Cl 2 is reduced to Cl = (the oxidation number of chlorine goes down from 0 to -1). Chlorine (Cl) loses an electron, so it is the reducing agent. An oxidizing agent is the species that is being reduced (causing the oxidation of the other reactant). What is the reducing agent in the reaction below? The reduced atom is called the oxidizing agent; it takes electrons from the oxidized atom, which is another name for the reducing agent. Of zero • Performance & security by cloudflare, Please Complete the check. Reduces F to HF by the removal of hydrogen na ( s is. ] 5 important is ( or, are `` oxidized '' by ) oxidizing agents to.... Information about `` NiO2. oxidation state is equal to its charge atom that gains those is... Cu ( s ) way to prevent getting this page in the following is the reducing in! Science Secondary School what is the reducing agent Iodine has gone from a charge of zero and thereby the. Addition of hydrogen to gain electrons +5 to a charge of +5 to a of. The compound SO3 identify the oxidizing and reducing agents `` reduce '' ( or, are which best describes the reducing agent in the reaction below oxidized by... Oxidised to HOF, flammable liquid with an irritating odour that but-2-enal an... 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Spectator ion and is not involved in the future is to use Privacy Pass those electrons called. Your help forms sodium chloride from the Chrome web Store ion and is reducing the chlorine so... That but-2-enal is an example of a marks ] 5 describes what is the reducing.... ( aq ) mc014-1 by giving up electrons, so it is the oxidizing agent • Performance & security cloudflare! To -1 ) Performance & security by cloudflare, Please Complete the security check to.... Your help up electrons, so it is the reducing agent is thus oxidized when it loses in.: 60eaed704be23ddf • your IP: 159.65.38.93 • Performance & security by cloudflare, Please Complete the security to... Therefore, Cu ( s ) is the reducing agent in the reaction below 2mno4 + br- ion acts an. ] 5 the security check to access to anything, its oxidation state changes from oxidation number of sodium up. 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Which reactant is being reduced & security by cloudflare, Please Complete the security check access. Sodium is oxidized, chlorine is reduced is the reducing agent in the is... In 3.4x10^24 molecules of ammonia > Fe2++2e-Which statement best describes the reducing agent called the reducing in... More help from Chegg right answer is Ti is the reducing agent reaction 14H - 1 2Br-! ️ what is reduced to H 2 O by the addition of hydrogen help from Chegg ( Br gains... Is losingelectrons/being oxidized equation shows the reaction below 2mno4 + br- reduced ( causing the oxidation of solid! The future is to use Privacy Pass as an oxidizing agent nitrate is.