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Tunguska Event (1908)

Tunguska Event (1908). Reading: Chapter 8 Section1-5 HW 6: DUE Tuesday 7/1/14 ( only assignment from this chapter) Chap . 6, #s 7, 9, 13, 15, 17, 25, 28, 35-43 odd, 59, 63-75 odd HW 7: DUE Wednesday 7/2/14 ( only assignment from this chapter)

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Tunguska Event (1908)

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  1. Tunguska Event (1908) • Reading: Chapter 8 Section1-5 • HW 6: DUE Tuesday 7/1/14 (only assignment from this chapter) • Chap. 6, #s 7, 9, 13, 15, 17, 25, 28, 35-43 odd, 59, 63-75 odd • HW 7: DUE Wednesday 7/2/14 (only assignment from this chapter) • Chap. 7, #'s 11, 12, 15-21 odd, 31, 33, 35, 39, 40, 53, 59, 67, 70, 72-75 all, 77, 82, 84, 88, 89 • For lab Tomorrow (dry lab) • Lab Wednesday (WET LAB!) • Experiment 6 • Exam 2 on Thursday

  2. Balancing Chemical Equations

  3. Predicting Reactions

  4. Predicting Reactions – Double Replacement Are the compounds: a) both ionic? b) an acid and a base Step 1: Write ONE of each ion on the product side in the proper order (Switch anions) A X B Y A Y B X  RbI + KF Rb F + K I

  5. Predicting Reactions – Double Replacement Step 1: Write ONE of each ion on the product side in the proper order Step 2: Balance the charges of each ion pair (USE ONLY SUBSCRIPTS) Step 1: Write ONE of each ion on the product side in the proper order Step 2: Balance the charges of each ion pair (USE ONLY SUBSCRIPTS) Step 3: Balance the equation (DO NOT TOUCH SUBSCRIPTS!!!)

  6. Predicting Reactions – Double Replacement A B C D A D C B Step 1:  AlCl3 + MgSO4 Al SO4 + Mg Cl  Step 2: AlCl3 + MgSO4 Al3+ SO42- + Mg2+ Cl- Al2(SO4)3 MgCl2 Step 3: 2 AlCl3(aq) + 3 MgSO4(aq) Al2(SO4)3(aq) + 3 MgCl2(aq) 2 AlCl3(aq) + 3 MgSO4(aq) Al2(SO4)3(aq) + 3 MgCl2(aq) 2 AlCl3(aq) + 3 MgSO4(aq) Al2(SO4)3(aq) + 3 MgCl2(aq) 2 AlCl3(aq) + 3 MgSO4(aq) Al2(SO4)3(aq) + 3 MgCl2(aq)

  7. Predicting Reactions – Double Replacement Write the balanced chemical reaction for the reaction of calcium oxalate with nickel (III) acetate A B C D A D C B CaC2O4 + Ni(C2H3O2)3 Step 1:  Ca C2H3O2 + Ni C2O4  Step 2: CaC2O4 + Ni(C2H3O2)3 Ca2+ C2H3O2- + Ni3+ C2O42- Ca(C2H3O2)2 Ni2(C2O4)3 Step 3: 3CaC2O4(s) + 2 Ni(C2H3O2)3(aq) 3Ca(C2H3O2)2(aq) + Ni2(C2O4)3(s) 3CaC2O4(s) + 2Ni(C2H3O2)3(aq) 3Ca(C2H3O2)2(aq) + Ni2(C2O4)3(s) 3 CaC2O4(s) + 2 Ni(C2H3O2)3(aq) 3Ca(C2H3O2)2(aq) + Ni2(C2O4)3(s) 3 CaC2O4(s) + 2 Ni(C2H3O2)3(aq) 3Ca(C2H3O2)2(aq) + Ni2(C2O4)3(s)

  8. Predicting Reactions – Double Replacement Write the balanced chemical reaction for the reaction of calcium oxalate with nickel (III) acetate A B C D A D C B CaC2O4 + Ni(C2H3O2)3 Step 1:  Ca C2H3O2 + Ni C2O4  Step 2: CaC2O4 + Ni(C2H3O2)3 Ca2+ C2H3O2- + Ni3+ C2O42- Ca(C2H3O2)2 Ni2(C2O4)3 Step 3: 3CaC2O4(s) + 2 Ni(C2H3O2)3(aq) 3Ca(C2H3O2)2(aq) + Ni2(C2O4)3(s) 3CaC2O4(s) + 2Ni(C2H3O2)3(aq) 3Ca(C2H3O2)2(aq) + Ni2(C2O4)3(s) 3 CaC2O4(s) + 2 Ni(C2H3O2)3(aq) 3Ca(C2H3O2)2(aq) + Ni2(C2O4)3(s) 3 CaC2O4(s) + 2 Ni(C2H3O2)3(aq) 3Ca(C2H3O2)2(aq) + Ni2(C2O4)3(s)

  9. Balancing Chemical Equations Write the balanced chemical equation for the reaction between hydrochloric acid and titanium (IV) hydroxide A D C B A B C D 4HCl(aq) + Ti(OH)4(s) 4H2O(l)+ TiCl4(aq) HCl(aq) + Ti(OH)4 + Ti(OH)4(s)  4 H2O  4 HOH  4 H2O(l)  4H+ OH- + Ti+4 TiCl4(aq) TiCl4 Cl- 4 HCl(aq) + Ti(OH)4(s) 4 H2O(l)+ TiCl4(aq)

  10. Balancing Chemical Equations Write the balanced chemical equation for the reaction between sulfuric acid and cobalt (III) hydroxide A B BA 3H2SO4(aq) + Co(OH)3(s) Co2(SO4)3(aq) + H2O(l) 3H2SO4(aq) + 2Co(OH)3(s) Co2(SO4)3(aq) + H2O(l) 3H2SO4(aq) + 2Co(OH)3(s) Co2(SO4)3(aq) + 6H2O(l) + Co(OH)3(s)  Co2(SO4)3  Co2(SO4)3(aq) + H2O(l) + Co(OH)3 H2SO4(aq) Co+3 SO4-2

  11. Balancing Chemical Equations Write the balanced chemical equation for the reaction between hydroiodic acid and solid calcium carbonate 2HI(aq) + CaCO3(s) H2CO3(aq) + CaI2(aq) HI(aq)  H2CO3  H2CO3(aq) + CaI2(aq) + CaCO3(s) Coefficient of CO2 and H2O will be the same as the H2CO3 CO2(g) H2O(l) 2HI(aq) + CaCO3(s) CO2(g) +H2O(l) + CaI2(aq)

  12. An aqueous solution of lead (II) nitrate is added to an aqueous solution of copper (I) bromide. What is the balanced equation for this reaction? Step 1:  Pb(NO3)2(aq) + CuBr(aq) Pb Br + Cu NO3 Step 2: Pb+2 Br- Cu+ NO3-  Pb(NO3)2(aq) + CuBr(aq) PbBr2(s) + CuNO3(aq) Step 3: Pb(NO3)2(aq) + 2 CuBr(aq) PbBr2(s) + 2CuNO3(aq) Pb(NO3)2(aq) + 2CuBr(aq) PbBr2(s) + 2CuNO3(aq) Pb(NO3)2(aq) + 2 CuBr(aq) PbBr2(s) + 2CuNO3(aq)

  13. A solution of chromium (III) sulfate is added to a solution of cesium phosphate. Give the balanced equation for any reaction that happens. Cr2(SO4)3 + Cs3PO4  CrPO4 + Cs2SO4 Cr2(SO4)3(aq) + 2 Cs3PO4(aq)2 CrPO4(s)+ 3 Cs2SO4(aq) Cr2(SO4)3(aq) + 2 Cs3PO4(aq)2 CrPO4(s)+ 3 Cs2SO4(aq) Cr2(SO4)3(aq) + 2 Cs3PO4(aq)2 CrPO4(s)+ 3 Cs2SO4(aq) Cr2(SO4)3(aq) + 2 Cs3PO4(aq)2 CrPO4(s)+ 3 Cs2SO4(aq) Cr2(SO4)3(aq) + 2 Cs3PO4(aq) 2 CrPO4(s)+ 3 Cs2SO4(aq) Cr2(SO4)3(aq) + 2 Cs3PO4(aq)2 CrPO4(s)+ 3 Cs2SO4(aq) Cr2(SO4)3(aq) + 2 Cs3PO4(aq)2 CrPO4(s)+ 3 Cs2SO4(aq) Cr+3 PO4-3 Cs+ SO4-2

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