4Na+O2--->2Na2O. The reducing agent gets oxidized, which is the loss of electrons. When trying to identify the best reducing agent notice that some of the provided reducing agent species occur as the product their reduction half reactions. In the reaction MnO2 + 4HCl -> MnCl2 + Cl2 + 2H2O, Cl (chlorine) is the substance which is oxidized from the HCl, and it is the reducing agent for the MnO2 as well. The equation for that reaction is: 4Na + O2 --> 2Na2O. Trending Questions. Answer to: Oxidation-Reduction Reactions 4Na(s) + O2(g)-> 2Na2O(s) What is the oxidizing agent? The change in the oxidation number is brought by the transfer of electrons between the reactants. Mention which is reduced and oxidized in the reaction: Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. © copyright 2003-2020 Study.com. Example of a reaction that is NOT oxidation-reaction: AgNO3(aq) + KCl(aq) => AgCl(s) + KNO3(aq) True or False: Oxidation and reaction occur in all chemical reactions? Log in. One possible pathway for that reaction is the formation of sodium oxide as highly reactive pure sodium reacts with the air. Join. For the oxidation-reduction reaction 2K(s) + Cl2(g) => 2KCl(s), the K is: The reducing agent . O goes from 0 to -2 => oxidizing agent (a) is the answer. Ask Question + 100. The oxidation number of cadmium is increased from 0 to +2. 4 answers. Because a reducing agent is always transformed into its conjugate oxidizing agent in an oxidation-reduction reaction, the products of this reaction include a new oxidizing agent (Al 2 O 3) and a new reducing agent (Fe). As Cl is the oxidized substance in HCl, thus it is the oxidizing agent in the reaction. Every reaction becomes easy in context of finding oxidised and reduced species.. Join now. sodium lost electrons. An element that increases its oxidation state is said to be oxidized while an element that decreases its oxidation state becomes reduced. Mention which is reduced and oxidized in the reaction: 4Na(s) + O2(g) → 2Na2O(s) All rights reserved. Sciences, Culinary Arts and Personal 0 3. False. Still have questions? Lv 7. Get your answers by asking now. False. Earn Transferable Credit & Get your Degree, Get access to this video and our entire Q&A library. Oxidation-reduction reactions, or redox reactions, are characterized by changes in the oxidation state of elements after the reaction. 1. 1 0. The oxidizing agent causes an oxidation of a reactant, and in the process becomes reduced. Na goes from 0 to +1 => reducing agent. Identify the oxidising agent 2na+O2=2na2o Get the answers you need, now! - Definition & Examples, Substitution Reaction Examples in Organic Chemistry, Corrosion: Definition, Prevention & Protection, Acidic & Basic Salt Solutions: Explanation & Examples, Pennsylvania Biology Keystone Exam: Test Prep & Practice, All India Pre-Veterinary Test (AIPVT): Exam Prep, DSST Environmental Science: Study Guide & Test Prep, Michigan Merit Exam - Science: Test Prep & Practice, Middle School Life Science: Help and Review, High School Biology: Homework Help Resource, TExES Life Science 7-12 (238): Practice & Study Guide, Holt McDougal Biology: Online Textbook Help, UExcel Microbiology: Study Guide & Test Prep, Middle School Life Science: Homework Help Resource, Middle School Life Science: Tutoring Solution, Biological and Biomedical 0 0. science teacher. answer! Meanwhile, the reducing agent reduces a reactant and becomes oxidized. What is the reducing agent? $$. The oxidizing agent is nickel and the reducing agent is cadmium. Select the oxidising agent and reducing agent in the reaction 4Na+O2=2Na2o Get the answers you need, now! Trending Questions . The value of the oxidation state determines how many electrons are lost (for oxidation) and gained (for reduction) after the redox reaction. {eq}4Na(s) + O_2(g) \rightarrow 2Na2O(s){/eq}. - Definition, Process & Examples, Oxidation & Reduction Reactions in the Metabolism: Process & Significance, Oxidation Number: Definition, Rules & Examples, Decomposition Reaction: Definition & Examples, Electrochemical Cells and Electrochemistry, Gas Evolution Reactions: Definition & Examples, Electrochemistry: Free Energy and Cell Potential Energy, Double Displacement Reaction: Definition & Examples, Balancing Redox Reactions and Identifying Oxidizing and Reducing Agents, Spontaneous Reactions & Gibbs Free Energy, What is a Chemical Equation? Join now. Reactants in the redox reaction may also be classified as either an oxidizing or reducing agent. In the oxidation-reduction reaction, 4Na(s) + O2(g) => 2Na2O(s), which species is oxidized? Our experts can answer your tough homework and study questions. All other trademarks and copyrights are the property of their respective owners. Mention which is reduced and oxidized in the reaction: 4Na(s) + O2(g) → 2Na2O(s), 4Na + O2 → 2Na2O Na2O + H2O → 2NaOH In the given reaction, the oxide of sodium is ………, Mention which is reduced and oxidized in the reaction: 2Na(s) + Cl2(g) → 2NaCl(s), Mention which is reduced and oxidized in the reaction: 2Na(s) + S(s) → Na2S(s), In the reaction identify the species undergoing oxidation and reduction: H2S(g) + O2(g) → 2S(s) + 2H2O(l). 2Na--->2Na+ O2--->2O-2. Ask your question. The equation for that reaction is: 4Na + O2 --> 2Na2O. One possible pathway for that reaction is the formation of sodium oxide as highly reactive pure sodium reacts with the air. Get your answers by asking now. Reducing Agent: H2S (Because it gives H to Cl and itself gets oxidised to S) 2# 4Na + O2 ® 2Na2O Substance Oxidised: Na (Because Addition of Oxygen is taking place and Na changes to Na2O) The sum of the charges in a compound is 0. Become a Study.com member to unlock this Na. Services, Redox (Oxidation-Reduction) Reactions: Definitions and Examples, Working Scholars® Bringing Tuition-Free College to the Community. 1. Example of a reaction that is NOT oxidation-reaction: AgNO3(aq) + KCl(aq) => AgCl(s) + KNO3(aq) True or False: Oxidation and reaction occur in all chemical reactions? 2 O = 2 * -2 = -4. Log in. 1 decade ago. This indicates that in each case this species can undergo an _____ oxidation. Create your account, The chemical equation for the oxidation-reduction reaction si given by,$$\rm 4Na_{(s)}\ +\ O_{2(g)}\ \rightarrow\ \rm 2Na_2O_{(s)} Calculate the standard cell potential for each of... Kindly answer both questions! Complete and balance the following equation: ... 18. How many cups is 1437 ml of water ? Mention which is reduced and oxidized in the reaction: 4Na(s) + O2(g) → 2Na2O(s) In the oxidation-reduction reaction, 4Na(s) + O2(g) => 2Na2O(s), which species is oxidized? Still have questions? Ask Question + 100. I hope this makes sense to you and this answer will be helpful for you. Every reaction becomes easy in context of finding oxidised and reduced species.. Ni is +4 in NiO2, OH is -1, Ni+2 is bonded to two OH-1. hariomyadav2251 5 hours ago Chemistry Secondary School +5 pts. Join Yahoo Answers and get 100 points today. Na. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. The oxidation number of nickel is reduced from +4 to +2. Reduction in Chemistry: Definition & Overview, Combination Reaction: Definition & Examples, Disproportionation: Definition & Examples, What is Oxidation? The element that is oxidized is the reducing agent. In the reaction MnO2 + 4HCl →Mn Cl2 + Cl2 +2H2O Which species is oxidized. 2H2 (0) ---> H(+1) + 1e- oxidizing (reducing agent is 2H2) O2 (0) + 2e- ---> O2 (-2) reducing (oxidizing agent is O2) Source(s): I'm a college student taking AP Chem. For the oxidation-reduction reaction 2K(s) + Cl2(g) => 2KCl(s), the K is: The reducing agent .