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