Detremind the oxidation numbers for each element in the following compounds. 1.)Hg2(ClO4)2 Hg:____ CI:____ O:____   2.) Cr2(SO4)3 CR:___ S:___ O:____   3.) CoSeO4 Co:____ Se:____ O:_____   4.)Pb(OH)2 Pb:____ O:____ H:____

Zn + HPO32-+ 2H2O+ OH-Zn(OH)42- + H2PO2- In the above reaction, the oxidation state of phosphorus changes from___ to ___. How many electrons are transferred in the reaction?

= ly sunny If an ion consists of a single atom, what can be said about the value of the oxidation number of the atom? O 0 smaller than the charge of the ion bigger than the charge of the ion equal to the charge of the ion $ FS 5 O Search 6 FB & 7 F9 ★ 8 Sc ( 9 a 81 0 G

y If an ion consists of a single atom, what is the value of the oxidation number of the atom? O smaller than the charge of the ion о O zero equal to the charge of the ion bigger than the charge of the ion -- Fo Search FB & C F9 F10 Ra D F11 ) F12 G Del

Balance the following equations using Oxidation Number method and explain how they are the same in a sentence. 1. l 2 +HNO 3 -----> HIO 3 +NO 2 +H 2 O 2. HBr + HBrO 3 ----> Br 2 + H 2 O

A Only Please What type (redox, acid-base, precipitation) are the reactions below? For the redox reactions, identify the oxidizing and reducing agent, and the oxidation numbers of atoms in each species.   a. FeCl3 +          Cu                    -->        FeCl2                +          CuCl b. CuSO4 +          Pb(NO3)2         -->       Cu(NO3)2         +          PbSO4 c. NH4NO3   -->      N2O     +          2 H2O

Use the oxidation states method to balance the reaction:    __ SO42– (aq)   +   __ Fe2+ (aq)     +   __ H+ (aq)       -->      __ SO2 (g)   +   __ Fe3+(aq)     +   __ H2O (l)

First, assign oxidation numbers for each atom in the balanced chemical equation below. You'll find it easiest to fill the blanks in left to right since once there is an oxidation number typed in the blank it will be much closer to appearing over the appropriate elemental symbol. Blank 1 Blank 2Blank 3 12Blank 13 Blank 4Blank 5Blank 6 Blank 14Blank 15Blank 16 KMnO4(aq) + KCIO₂(aq) + H₂O(l) → 4 MnO₂(s) + 3 KCIO4(aq) + 4 KOH(aq) Now, identify each of the following What underwent reduction? Blank 17 Blank 7Blank 8 What gained electrons? Blank 18 • What got oxidized? Blank 19 What is the oxidizing agent? Blank 20 • What is the reducer? Blank 21 What lost electrons? Blank 22 Blank 9Blank 10 Blank 11 Blank