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