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