� ! � � � � � � � � � � � � � � � � � � � � � � $$If a$gd/P Ff� $$If a$gd�Y` $If gd3U gd�*> &d P� � gd�*> $a$gd�*> ' * + - . � C Don’t forget to show brackets and charge on your LDS for ions! � 4. � ��ࡱ� > �� J L ���� I �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������� � �� �0 bjbjOO 76 -a -a ? +2 C. 4 D. +4 3. � Microsoft word 14 04 oxidation numbers worksheet doc author. a. � 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 . Na 2 O 2 Na O 2. ( The sum of the oxidation numbers of all atoms in a polyatomic ion equals the charge of the ion. The oxidation number of fluorine in a compound is always -1. � An element that undergoes a change in oxidation number in the course of a reaction has been oxidized or reduced. ] Method 1: Oxidation number method 1. � P Assign oxidation numbers to all elements in the reaction 2. V H 2SO 4 22. ! 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? 2 The oxidation number of F is -1 in all its compounds. 3. � The more-electronegative element in a binary compound is assigned the number equal to the charge it would have if it were an ion. The oxidation number of a monatomic ion equals the charge on the ion. 18. � I Formula Element and Oxidation Number Formula Element and Oxidation Number 1. 0 � Title: Microsoft Word - 14-04 Oxidation numbers worksheet.doc Author: Brent White Na Na 18. Calculate the oxidation number of chromium in each of the following. Oxidation Reduction Worksheet. � Use the changes in oxidation numbers to determine which elements are oxidized and which are reduced in these reactions. Letters to a German Princess, 2 vols. z Redox practice worksheet Name: Date: 1. elements. / In which substance is the oxidation number of nitrogen zero? o Use oxidation #s. Remember that if the oxidation # increases it means oxidation and when it decreases it mean reduction! w O 1. &. Cl2 Cl 16. v Assign oxidation number to each element in the following compounds: a. PbSO4 b. H2O2 c. K2Cr2O7 d. K2SiO3 . Rules for Determining Oxidation Numbers: Chem 111 Redox Worksheet. The oxidation number of any pure element is 0. State of the change that represents oxidation, reduction or neither. oxidation numbers and answers worksheet doc is to keep it for both of us, and it is to remain unbroken like our love. e � **Note: Notice that non-metals get the –ide ending to their names when they become an ion. The more electronegative element in a binary compound is assigned the number equal to the charge it would have if it were an ion. Na2O2 Na O 2. 2. Cl- Cl 17. -Cl Cl 17. � P 2O 5 → P 4H 10 Determine the oxidation number 23. p The oxidation number of a monatomic ion is equal to its charge. Let's learn how to assign oxidation numbers. 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. R � � � � � � � � � � � � � � � � � � � � � � � � � Ff�b $$If a$gd/P $If gd�Y` $If gd3U 7 8 m � 5 r  � A � � � � � � � � � � � � � � � � � � � � � � gd�Y` Is always -1 they become an ion are oxidized and which are reduced in the Cl- ion is to. 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