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