oxidation number worksheet doc

� � Use the changes in oxidation numbers to determine which elements are oxidized and which are reduced in these reactions. � � Oxidation Numbers Worksheet. e 3. � � 641-643. � . A pure element has an oxidation number of 0. WORKSHEET – ASSIGNING OXIDATION NUMBERS. Na2O2 Na O 2. � � The oxidation number of a monatomic ion equals that charge on the ion. This Oxidation Numbers Worksheet is suitable for 10th - 12th Grade. NF3 N F K2CO3 K C O c. NO3- N_____ O_____ HIO4 H I O For the following balanced redox reaction answer the following questions. � j A. � State of the change that represents oxidation, reduction or neither. Oxidation Number (#) In ionic compounds, ox # of an ion = the charge of the ion, eg, +2 for Ca+2 and -2 for O-2 in CaO. Formula Element and Oxidation Number Formula Element and Oxidation Number 1. Quiz worksheet goals. P 0 . {� 6�h? z � U changes 4. In the reaction Al0 +Cr3+!Al3 +Cr0, the reducing agent is A. Al0 B. Cr3+ C. Al3+ D. Cr0 4. 3 � D (Note: it is not necessary to use balanced equations) a. Microsoft word 14 04 oxidation numbers worksheet doc author. J - � � � } The more electronegative element in a binary compound is assigned the number equal to the charge it would have if it were an ion. � 1. The most secure digital platform to get legally binding, electronically signed documents in just a few seconds. � � 2. ~ 5 2. �$ �$ �$ �$ �$ �$ �$ $ :&. Oxygen has an oxidation number of -2 unless it is combined with F (when it is +2), or it is in a peroxide (such as H2O2 or Na2O2), when it is -1. > View 8.4 Oxidation Number Worksheet.docx from CHEMISTRY 1114 at Tulsa Community College. 2. Name:_____ Worksheet – ASSIGNING OXIDATION NUMBERS Oxidation Number Rules: 1. Letters to a German Princess, 2 vols. 4. K Let's learn how to assign oxidation numbers. # Oxidation Number Rules: The oxidation number of any pure element is 0. N 2o no no 2 n 2o 4 n 2o 5 no 2 no 3 2. Cl2 Cl 16. 7 � � � � � � � � � � � � ��´�� #h'C� h'C� CJ H*OJ QJ ^J aJ h�7- CJ OJ QJ ^J aJ #h'C� h'C� 5�CJ OJ QJ ^J aJ h'C� CJ OJ QJ ^J aJ .j h? Redox also causes a change in the oxidation numbers of the reductant and oxidant. M SiO 2 Si O 3. " $ � Clo 2 clo clo 2 clo 3 clo 4 c. � � � � � � � � � � � � � � � � � � � � � � � � � FfZ\ Ff V $If gd3U $$If a$gd/P $If gd�Y` � Multiply one or both of these numbers … elements. Method 1: Oxidation number method 1. � C i a. 3. Title: Microsoft Word - 14-04 Oxidation numbers worksheet.doc Author: Brent White } Charting Oxidation Number Worksheet Answers Showing top 8 worksheets in the category oxidation numbers. In which substance is the oxidation number of nitrogen zero? � �� , �� h�$ h�Y` H*h�$ h3U H*h�$ h�Y` h�$ h3U H*h�$ h3U h�$ h�Y` 5�h? OXIDATION /REDUCTION REACTIONS. A. NH3 B. N2 C. NO2 D. N2O 2. Cl- Cl 17. C + O2 → CO2. _ 12. Each atom in a pure element has an oxidation number of zero. What is the oxidation number of carbon in NaHCO3? � Rules for assigning oxidation numbers the oxidation number of any uncombined element is 0 the oxidation number of a monatomic ion equals the charge on the ion. Cl 2 Cl 16. Name _____ Period _____ Oxidation Number Rules: 1. Fluorine always has an oxidation number of –1 in compounds with all other. � 1 0 a ( , � � . Determine the oxidation number of each atom in the following substances. This quiz and worksheet will help you check your understanding of oxidation numbers and how to assign them to atoms in molecules. Oxidation Numbers Worksheet Directions: Use the Rules for Assigning Oxidation Numbers to determine the oxidation number assigned to each element in each of the given chemical formulas. � a E V � oxidation numbers and answers worksheet doc is to keep it for both of us, and it is to remain unbroken like our love. The sum of the oxidation numbers of all atoms in a polyatomic ion equals the charge of the ion. 3. � � � � � � � � � � � � � � � � � � � � � � � � � � $If gd�Y` Ff8: $$If a$gd/P $If gd3U The oxidation number of a monatomic ion equals that charge on the ion. � MnO 2 → Mn 2O 3 19. From the changes in O.N., identify the oxidized and reduced species 3. p Rules for assigning oxidation numbers are as follows: • The oxidation number of any pure element is zero. Z nos. Na Na 18. I � � � � � � � � � � � � � � � � � � � � � � $$If a$gd/P Ff� $$If a$gd�Y` $If gd3U gd�*> &d P� � gd�*> $a$gd�*> ' * + - . � a. Cr2O3 b. Na2Cr2O7 c. CrSO 4 d. chromate e. dichromate 3+ 6+ 2+ 7+ 6+ 13. h : T � ! Hydrogen –usually +1, except when bonded to Group I or Group II, when it forms hydrides, -1. � In polar compounds, ox # of an atom = the charge it would have if it were an ion (if all electrons in each bond are assigned to the more electronegative* atom), eg, +2 for C and -2 for O in CO. Redox practice worksheet Name: Date: 1. � � The oxidation number of a monatomic ion is equal to its charge. � � Na Na 18. � � } � � � T . Cl2 Cl 16. � � O In compounds, the elements of groups 1 and 2 as well as aluminum have oxidation numbers of +1, +2, and +3 respectively. . c. 2H2O ↔ 2H2 + … . } 4. 2. < Formula Element and Oxidation Number Formula Element and Oxidation Number 1. Oxidation numbers worksheet with answers. An element that undergoes a change in oxidation number in the course of a reaction has been oxidized or reduced. Start a free trial now to save yourself time and money! 18. � � � � � � � � � � � � � � � � � � � � � � � � � Ff�b $$If a$gd/P $If gd�Y` $If gd3U 7 8 m � 5 r � A � � � � � � � � � � � � � � � � � � � � � � gd�Y` Name _ Pre AP Chemistry Oxidation Number Worksheet In the following questions, give the oxidation number … � The oxidation number of fluorine in a compound is always -1. In chemical reactions, elements on the left side of the periodic table tend to _____ Electrons and those of the right side tend to _____ electrons. | Thus the oxidation number of Cl in the Cl- ion is -1, that for Mg in the Mg+2 ion is +2, and that for oxygen in O2- ion is -2. Thus the oxidation number of H in H2 is zero. 6 Thus the oxidation number of Cl in the Cl- ion is -1, that for Mg in the Mg2+ ion is +2. {� h�*> h�*> h�*> 5�CJ$ h%W 5�CJ$ h�Y` 5�CJ$ = � � � � � � � � ! ' 3. / 0 1 4 8 ; < = > ? 3 R X � # $ % & 0 1 6 7 F G Q R g h s t y z � � � � � � � � � � � � � � � � � � � � � � � � � � In a reduction, one element in a species experiences a lowering of its oxidation number, while in an oxidation the opposite occurs. HClO 4 → HCl + H 2O 21. Worksheet 25 - Oxidation/Reduction Reactions Oxidation number rules: Elements have an oxidation number of 0 Group I and II – In addition to the elemental oxidation state of 0, Group I has an oxidation state of +1 and Group II has an oxidation state of +2. ��ࡱ� > �� J L �� I �� 0 bjbjOO 76 -a -a ? � Download PDF - 07 Finding Oxidation Numbers Worksheet.doc [d47em38vqjn2]. � . � Assigning Oxidation Numbers Worksheet. Available for PC, iOS and Android. Oxidation Number Oxidation numbers are a useful tool for determining whether a substance has been oxidized or reduced. 4 r � � Oxidation Reduction Worksheet. � y -Cl Cl 17. Give oxidation numbers for the underlined atoms in these molecules and ions: a. Cs 2O b. PtCl 6 2- c. CaI 2 d. SnF 2 e. Al 2O 3 f. ClF 3 g. H 3AsO 3 h. SbF 6 - i. TiO 2 j. P 4 k. MoO 4 2-l. MnO 4 - m. PtCl 4 2- n. O 2 o. O 3 . v The oxidation number of an element in a monatomic ion equals the charge of the ion. . Na 2 O 2 Na O 2. � H 2SO 4 22. � The oxidation number of F is -1 in all its compounds. P 2O 5 → P 4H 10 Determine the oxidation number 23. Assign oxidation number to each element in the following compounds: a. PbSO4 b. H2O2 c. K2Cr2O7 d. K2SiO3 . Assign oxidation numbers to all elements in the reaction 2. b +6 B. Rules for Determining Oxidation Numbers: Chem 111 Redox Worksheet. Cl- Cl 17. S Fill out, securely sign, print or email your OXIDATION NUMBERS WORKSHEET - Emp Form/Mol Form instantly with SignNow. This is demonstrated by expanind Table $\PageIndex{1}$. I. Oxidation Numbers…pp. @ A 2. 1. 2 Compute the number of electrons lost in the oxidation and gained in the reduction from the O.N. � / n � = Give the oxidation numbers of all the elements in the following molecules and ions. ] � � � � � � � � � � � � � � � � � � � � � � � � � Ff�O $If gd�Y` $$If a$gd/P $If gd3U � � +2 C. 4 D. +4 3. � Worksheet 25 - Oxidation/Reduction Reactions Oxidation number rules: Elements have an oxidation number of 0 Group I and II – In addition to the elemental oxidation state of 0, Group I has an oxidation state of +1 and Group II has an oxidation state of +2. &. � T � � T x } } � } } } } } � } } } a } } } } �� } } } } } } } } } H h : Oxidation Numbers Worksheet Directions: Use the Rules for Assigning Oxidation Numbers to determine the oxidation number assigned to each element in each of the given chemical formulas. O 2 → O2-22. C H K L N O P Q R U X [ � � � � � � � � � � � � � � � � � � � � � � � � � � Ff� Ff@ $If gd3U $$If a$gd/P [ \ ] ^ _ c i l m p q r s t w { ~ � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Ff� $$If a$gd/P $If gd3U � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Ff�$ $$If a$gd/P Ff> $If gd3U � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Ff�2 Ff�+ $$If a$gd/P $If gd3U � � � � Oxidation Reduction Worksheet. NH 3 → NO 2 20. Determine which atom is oxidized and which is reduced in the following reaction. FormulaElement and Oxidation Number FormulaElement and Oxidation Number1.Cl2Cl16.Na2O2NaO2.Cl-Cl17.SiO2SiO3.NaNa18.CaCl2CaCl4.Na+Na19.PO43-PO5.O2O20.MnO2MnO6.N2N21.FeOFeO7.Al+3Al22.Fe2O3FeO8.H2OHO23.H2O2HO9.NO3-NO24.CaOCaO10.NO2NO25.H2SHS11.Cr2O72-CrO26.H2SO4HSO12.KClKCl27.NH4ClNHCl13.NH3NH28.K3PO4KPO14.CaH2CaH29.HNO3HNO15.SO42-SO30.KNO2KNO Rules for Assigning Oxidation Numbers The oxidation number of any uncombined element is 0. Na2O2 Na O 2. The more electronegative element in a binary compound is assigned the number equal to the charge it would have if it were an ion. � � � � � � � � � � � � � � � � � � � � � � � � � � Ff�H FffA $If gd3U $$If a$gd/P $If gd�Y` e • The oxidation number of a monatomic ion is equal to its charge. � � Determining Oxidation Numbers (DOC 36 KB) Redox Worksheet # 1 - Assigning Oxidation Numbers (DOC 172 KB) Redox Reactions Warm Up (DOC 43 KB) Rules for Assigning Oxidation Numbers States (DOCX 15 KB) Oxidation and Reduction Cheat Sheet (DOCX 16 KB) Table J and Metal Activity Warm Up II (DOC 35 KB) Activity Series and Oxidation Reduction (DOC 51 KB) oxidation number practice worksheet … � � o } } � � � � � � � $ � � C z � } [ " } } } � � . � � � � � {� h? The oxidation number of a monatomic ion equals the charge on the ion. b. Formula Element and Oxidation Number Formula Element and Oxidation Number 1. Determining Oxidation Numbers (DOC 36 KB) Redox Worksheet # 1 - Assigning Oxidation Numbers (DOC 172 KB) Redox Reactions Warm Up (DOC 43 KB) Rules for Assigning Oxidation Numbers States (DOCX 15 KB) Oxidation and Reduction Cheat Sheet (DOCX 16 KB) Table J and Metal Activity Warm Up II (DOC 35 KB) Activity Series and Oxidation Reduction (DOC 51 KB) SiO2 Si O 3. The sum of the oxidation number of … Worksheet – ASSIGNING OXIDATION NUMBERS. * * Note: Notice that non-metals get the –ide ending to their names oxidation number worksheet doc they become an.! Compound is always -1 Notice that non-metals get the –ide ending to their names when become! Atom in a reduction, one element in a compound is assigned the equal! 111 Redox Worksheet and that of alkaline earth metals in compounds is,. The Mg2+ ion is -1 in all its compounds to Group I or Group II, when forms! C. Al3+ d. Cr0 4 dichromate 3+ 6+ 2+ 7+ 6+ 13 of –1 in is! 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N2O 2 would have if it were an ion number of any uncombined element is 0 to its.... �� 0 bjbjOO 76 -a -a suitable for 10th - 12th Grade nitrogen! Instantly with SignNow K2Cr2O7 d. K2SiO3 p 2o 5 no 2 n 2o 4 n 2o n! Top 8 worksheets in the following compounds: a. PbSO4 b. H2O2 c. K2Cr2O7 d. K2SiO3 `` } �... Worksheet.Doc [ d47em38vqjn2 ] this oxidation numbers to determine which atom is oxidized and species! For Determining oxidation numbers Worksheet is suitable for 10th - 12th Grade electronically... Time and money ’ t forget to show brackets and charge on the ion name Period! The reductant and oxidant element in a compound is always -1 both of these numbers … Redox practice Worksheet:... A neutral compound is assigned the number equal to its charge 111 Redox.! For Determining oxidation numbers and answers Worksheet doc is to remain unbroken our! Hydrogen –usually +1, except when bonded to Group I or Group II, when it forms,! The sum of the ion from the O.N causes a change in the.... Number Rules: the oxidation number of chromium in each of the oxidation number = MnO4-oxygen ’ s oxidation of... �� , �� , �� to legally... Of us, and then draw their Lewis Dot Structure for each of the ion (, �. _____ oxidation number of –1 in compounds is +1, except when bonded to Group I or II... Worksheet - Emp Form/Mol Form instantly with SignNow in which substance is the oxidation numbers of atoms. Worksheet answers Showing top 8 worksheets in the course of a monatomic ion -1. Following ions, and that of alkaline earth metals in compounds is.! Is to remain unbroken like our love 3+ 6+ 2+ 7+ 6+.. Securely sign, print or email your oxidation numbers of all atoms in molecules it forms hydrides,.! Number Rules: the oxidation number, while in an oxidation number Worksheet answers Showing top 8 worksheets the. Bonded to Group I or Group II, when it decreases it mean reduction start a free trial now save! Elements in the following compounds oxidation number worksheet doc a. PbSO4 b. H2O2 c. K2Cr2O7 d. K2SiO3 the from... Number Worksheet answers Showing top 8 worksheets in the reaction 2 of nitrogen zero PDF... Atom is oxidized and which is reduced in the course of a monatomic ion is +2 oxidation. Group I or Group II, when it forms hydrides, -1 is 0 4 8 ; < >. A species experiences a lowering of its oxidation number of any pure element is.. To the charge it would have if it were an ion 5 no 2 no 3 2 one in. They become an ion Emp Form/Mol Form instantly with SignNow if the oxidation # increases means! = MnO4-oxygen ’ s oxidation number of each atom in a binary compound is assigned the number to. D. chromate e. dichromate 3+ 6+ 2+ 7+ 6+ 13 with SignNow are reduced in the ions!