Si + 2F2 SiF4 4 RedOx Reactions Which element is oxidized? Which element is reduced? a) Cr2O3 b) Na2Cr2O7 Write oxidation #’s for each element in each ion: MgCl2 + H2 Which element is Oxidized and which element is Reduced? Mg + 2HCl RedOx Reactions 3 2 5 a) NH4+ b) CO32- RedOx Reactions RedOx Reactions RedOx Reactions Oxidation involves _____ of electrons and reduction is _____ of electrons. What is the Oxidation # of chromium in each? RedOx Reactions Oxidation/Reduction Task Cards Created by Teamwork Toolbox © 2017 1 6 Cl2 + NaBr NaCl + Br2 Identify the reducing agent and oxidizing agent. RedOx Reactions RedOx Reactions RedOx Reactions Explain how the 8 memory device below relates to RedOx Reactions oxidation-reduction: OILRIG 9 Label each Half Reaction as Oxidation or Reduction: a) Zn(s) Zn2+(aq) + 2eb) Pb2+(aq) + 2e- Pb(s) 10 Mg + Cu(NO3)2 Mg(NO3)2 + Cu Which element is oxidized? Which element is reduced? RedOx Reactions RedOx Reactions Oxidation/Reduction Task Cards Created by Teamwork Toolbox © 2017 Write UP or DOWN: 7 In a RedOx reaction, the element whose oxidation # goes ___ is oxidized. The element that goes ___ is reduced. Si + 2F2 SiF4 11 Which reactant is the oxidizing agent? Which is the reducing agent? What is the Oxidation # 12 of sulfur in each? a) H2SO4 b) Na2S2O3 RedOx Reactions Write oxidation #’s for each element in each compound: RedOx Reactions RedOx Reactions RedOx Reactions RedOx Reactions Briefly describe 3 14 “real world” applications or examples of RedOx reactions occurring around you on your way to school. RedOx Reactions Oxidation/Reduction Task Cards Created by Teamwork Toolbox © 2017 H2CO3 H2O + C 13 Is this reaction an oxidation-reduction reaction? Explain. 15 a) Sr(OH)2 b) SiO2 16 Cl2 + NaBr NaCl + Br2 Which element is oxidized and which is reduced? 17 Mg + 2HCl MgCl2 + H2 Label the reactants above as Oxidizing agent or Reducing agent. SiO2 + 2C Si + 2CO 18 Which element is oxidized and which is reduced? Write oxidation #’s for each element in each compound: Al2O3 + Mn 20 Identify the oxidizing agent and reducing agent. 21 a) Fe2O3 b) KMnO4 RedOx Reactions RedOx Reactions Al + MnO2 22 The sum of oxidation #’s in a neutral compound is ______. The oxidation # of an uncombined element (like K or N2) is ____. RedOx Reactions 19 Label the reactants above as Oxidizing agent or Reducing agent. RedOx Reactions RedOx Reactions 2PCl3 RedOx Reactions Oxidation/Reduction Task Cards Created by Teamwork Toolbox © 2017 2P + 3Cl2 Write oxidation #’s for each element below: 23 a) P4O6 b) H2PO4 S (s) SO2 (g) 24 Sulfur’s oxidation # changes from __ (as a reactant) to __ (as a product.) Does the above represent oxidation or reduction? 25 Nitrogen’s oxidation # changes from __ (as a reactant) to __ (as a product.) Does the above represent oxidation or reduction? 2P + 3Cl2 2PCl3 26 Which element is oxidized? Which element is reduced? RedOx Reactions NH3(g) RedOx Reactions RedOx Reactions RedOx Reactions Oxidation/Reduction Task Cards Created by Teamwork Toolbox © 2017 N2(g) 27 At which electrode (1 or 2) is Oxidation occurring? 28 Label 1 & 2 as ANODE or CATHODE
