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Happy Birthday United Nations (1945)

Happy Birthday United Nations (1945). Reading: Chapter 7 All (there WILL be a quiz!) HW 5.2: DUE Monday 7/1/14 17, 19, 21, 39, 43, 47, 53, 59, 71-77 (all), 83 HW 6: DUE Tuesday 7/2/14 ( only assignment from this chapter) Chap . 6, #s 7, 9, 13, 15, 17, 25, 28, 35-43 odd, 59, 63-75 odd

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Happy Birthday United Nations (1945)

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  1. Happy Birthday United Nations (1945) • Reading: Chapter 7 All (there WILL be a quiz!) • HW 5.2: DUE Monday 7/1/14 • 17, 19, 21, 39, 43, 47, 53, 59, 71-77 (all), 83 • HW 6: DUE Tuesday 7/2/14 (only assignment from this chapter) • Chap. 6, #s 7, 9, 13, 15, 17, 25, 28, 35-43 odd, 59, 63-75 odd • For lab Monday (yep, dry lab) • First Proficiency Quiz MONDAY!! • D.A., Sig. Figs, Metric, Math

  2. Look at the following. If there is a mistake, fix it. If there is not a mistake, write “correct” 1) HgCl – mercury (I) chloride 4) MnS – manganese sulfide 2) CaS – cadmium sulfide 5) AgH – silver (I) hydride 3) Rb2C2O4 – rubidium oxalate

  3. 1) HgCl – mercury (I) chloride 1) Hg2Cl2 – mercury (I) chloride 2) CaS – cadmium sulfide 2) CaS – calcium sulfide CdS – cadmium sulfide 3) Rb2C2O4 – rubidium oxalate 3) correct

  4. 4) MnS – manganese sulfide 4) MnS – manganese (II) sulfide 5) AgH – silver (I) hydride 5) AgH – silver (I) hydride 5) AgH – silver hydride

  5. Did you get a reaction? You know that a reaction took place if: A gas is released: lots of fizzing/bubbles fizzing/bubbles before

  6. Did you get a reaction? You know that a reaction took place if: A permanent color change takes place:

  7. Did you get a reaction? You know that a reaction took place if: An insoluble solid is produced 2 clear liquids

  8. Did you get a reaction? You know that a reaction took place if: A heat energy change is noticed

  9. Did you get a reaction? You know that a reaction took place if: A gas is released: A solid is formed: A permanent color change: A change in heat:

  10. Chemical Equations produces, yields, gives reacts with, added to, plus (aq) A (s) + B (aq)  C (l) + D (g) + E solid liquid gas aqueous (dissolved in water)

  11. Chemical Equations A(s) + B(aq) C(l) + D(g) + E(aq) FeCO3(s) + H2SO4(aq) H2O(l) + CO2(g) + FeSO4(aq)

  12. Chemical Equations Solid Solid – (s) Solid – (s)  Fe(s) Gas Gas – (g) Gas – (g)  CO2(g) Liquid Liquid – (l) Liquid – (l)  H2O(l) Aqueous Aqueous – (aq) Aqueous – (aq)  NaCl(aq) Aqueous means “dissolved in water”

  13. Chemical Equations (s) = solid  = reacts to form, etc. = liquid = reacts with, etc. (l) + = gas = no reaction (g) NR = aqueous = heat added (aq)

  14. Diatomic Elements • Elements the exist as diatomic molecules when UNCOMBINED (meaning not in a compound with other elements). H2, N2, O2, F2, Cl2, Br2, I2

  15. Types of reactions • Decomposition • One thing  more than one thing • A  B + C… • H2CO3(aq) H2O(l) + CO2(g) • 4C3H5(NO3)3(l)  12CO2(g) + 10 H2O(g) + 6 N2(g) + O2(g)

  16. Types of reactions Predictable decompositions: metal hydrogen carbonates with heat metal hydrogen carbonate metal carbonate + CO2(g) + H2O(g) + CO2(g) + H2O(g) Ca(HCO3)2(s) CaCO3(s) calcium hydrogen carbonate is heat and decomposes in to calcium carbonate, carbon dioxide and water

  17. Types of reactions Predictable decompositions: metal carbonates with heat metal carbonate metal oxide + CO2(g) Al2(CO3)3(s) Al2O3 + 3 CO2(g) aluminum carbonate is heat and decomposes in to aluminum oxide and carbon dioxide

  18. Types of reactions Unpredictable decompositions: metal oxides with heat metal oxide metal(?) + O2(g) 2 Fe2O3(s) 4 Fe(s) + 3 O2(g) 2 Fe2O3(s) 4 FeO(s) + O2(g)

  19. Types of reactions Unpredictable decompositions: metal ___ates with heat metal ___ate something + something else 2 KClO3(s) 2 KCl + 3 O2(g) Mg(NO3)2(s) Mg(NO2)2(s) + O2(g) Al2(SO4)3(s) Al2O3(s) + 3 SO3(g)

  20. Types of reactions • Combination • Two things to one thing • A + B…  C • N2(g) + 3 H2(g)  2 NH3(l)

  21. Types of reactions Predictable combination reactions: non-VOS metals and non-metals 2 Li(s)+ S(s) Li2S(s) 3 Ba(s)+ 2 P(s) Ba3P2(s)

  22. Types of reactions Unpredictable combination reactions: VOS metals and non-metals Pb(s)+ Se(s) PbSe(s) Pb(s)+ 2 Se(s) PbSe2(s)

  23. Types of reactions Unpredictable combination reactions: non-metals and non-metals 2 N2(g)+ 3 O2(g) 2 N2O3(g) N2(g)+ 2 O2(g) 2 NO2(g) 3N2(g)+ 2 O2(g) 2 N3O2(g)

  24. Types of reactions • Combustion • A + O2(g)  H2O(g) + CO2(g) • ALWAYS has O2(g) as a reactant and H2O(g) and CO2(g) as products!! • C5H12(l) + 7 O2(g)  6 H2O(g) + 4 CO2(g)

  25. Types of reactions • Single Replacement • A + BX  B + AX • Ca(s) + 2 HCl(aq)  H2(g) + CaCl2(aq) There tends to be a transfer of electrons in a single replacement reaction These are NOT NOT NOT NOT ions!!!!!!

  26. Activity Series More active will react! Li > K > Ba > Sr > Ca > Na > Mg > Al > Mn > Zn > Fe > Cd > Co > Ni > Sn > Pb > (H) > Cu > Ag > Hg > Au Mg> Cd so it WILL react! Mg(s) + CdCl2(aq)  MgCl2(aq) + Cd (s) The MORE active metal wants to be in a compound!!

  27. Activity Series More active will react! Li > K > Ba > Sr > Ca > Na > Mg > Al > Mn > Zn > Fe > Cd > Co > Ni > Sn > Pb > (H) > Cu > Ag > Hg > Au Ag> Au so it WILL react! AuNO3(aq) + Ag(s)  AgNO3(aq) + Au (s) The MORE active metal wants to be in a compound!!

  28. Activity Series More active will react! Li > K > Ba > Sr > Ca > Na > Mg > Al > Mn > Zn > Fe > Cd > Co > Ni > Sn > Pb > (H) > Cu > Ag > Hg > Au Al< Sr so it will NOT react! Sr(ClO3)2(aq) + Al(s)  NR The MORE active metal wants to be in a compound!!

  29. Activity Series More active will react! Li > K > Ba > Sr > Ca > Na > Mg > Al > Mn > Zn > Fe > Cd > Co > Ni > Sn > Pb > (H) > Cu > Ag > Hg > Au means in acid

  30. Activity Series More active will react! Li > K > Ba > Sr > Ca > Na > Mg > Al > Mn > Zn > Fe > Cd > Co > Ni > Sn > Pb > (H) > Cu > Ag > Hg > Au Cu< H so it will NOT react! Cu(s) + HClO4(aq)  NR The MORE active metal wants to be in a compound!!

  31. Activity Series More active will react! Li > K > Ba > Sr > Ca > Na > Mg > Al > Mn > Zn > Fe > Cd > Co > Ni > Sn > Pb > (H) > Cu > Ag > Hg > Au Pb> H so it WILL react! 2 HNO3(aq) + Pb(s)  H2(g) + Pb(NO3)2(s) The MORE active metal wants to be in a compound!!

  32. Activity Series More active will react! H2O ^ Li > K > Ba > Sr > Ca > Na > Mg > Al > Mn > Zn > Fe > Cd > Co > Ni > Sn > Pb > (H) > Cu > Ag > Hg > Au Only ones that will react with water

  33. Did you get it? Li > K > Ba > Sr > Ca > Na > (H2O) > Mg > Al > Mn > Zn > Fe > Cd > Co > Ni > Sn > Pb > (H) > Cu > Ag > Hg > Au Ca + H2O 2  Ca(OH)2(aq) + H2(g) Ca> H2O so it WILL react! H2SO4 + Hg  NR Hg< H so it will NOT react! Mn(C2H3O2)2 + K 2  2 KC2H3O2(aq) + Mn(s) K> Mn so it WILL react!

  34. Types of reactions • Neutralization • look for an acid and a base • bases have a hydroxide – OH – in them • NaOH(aq) – Ca(OH)2(aq) • HA(aq) + BOH  BA + H2O(l) • H2S(aq) + Sr(OH)2(aq)  SrS(aq) + 2 H2O(l)

  35. Types of reactions • Double Replacement (look for 2 ionic compounds on the reactant side) • AX + BY  AY + BX • 3 Fe2(SO4)3(aq) + 2 Li3AsO4(aq)  2 FeAsO4(s) + 3 Li2SO4(aq)

  36. Solubility Rules • All ammonium and group 1 metal salts are SOLUBLE (no exceptions) • All nitrate, chlorate, perchlorate, and acetate salts are SOLUBLE (no exceptions)

  37. Solubility Rules • Most chloride, bromide, and iodide salts are SOLUBLE. EXCEPTIONS! Compound containing silver, mercury (I), and lead (II) • Most fluoride salts are SOLUBLE. EXCEPTIONS! Compounds containing magnesium, calcium, strontium, barium, and lead (II)

  38. Solubility Rules • Most sulfate salts are SOLUBLE. EXCEPTIONS! Compounds containing strontium, barium, mercury (I), and lead (II) • Most sulfide and hydroxide salts are INSOLUBLE. EXCEPTIONS! Compounds containing calcium, strontium, and barium • Most carbonate, phosphate, and chromate salts are INSOLUBLE.

  39. Solubility and Reactions Na2C2O4(aq) + CaCl2(aq) 2 NaCl(aq) + CaC2O4(s) Na2C2O4(aq) + CaCl2(aq) 2 NaCl(aq) + CaC2O4(s) Na2C2O4(aq) + CaCl2(aq) 2 NaCl(aq) + CaC2O4(s) Na2C2O4(aq) + CaCl2(aq) 2 NaCl(aq) + CaC2O4(s) Na2C2O4(aq) + CaCl2(aq) 2 NaCl(aq) + CaC2O4(s) 3 H2SO4(aq) + 2 Fe(OH)3(s) Fe2(SO4)3(aq) + 6 H2O(l) 3 H2SO4(aq) + 2 Fe(OH)3(s) Fe2(SO4)3(aq) + 6 H2O(l) 3 H2SO4(aq) + 2 Fe(OH)3(s) Fe2(SO4)3(aq) + 6 H2O(l) 3 H2SO4(aq) + 2 Fe(OH)3(s) Fe2(SO4)3(aq) + 6 H2O(l) 3 H2SO4(aq) + 2 Fe(OH)3(s) Fe2(SO4)3(aq) + 6 H2O(l) 2 LiCl(aq) + Hg2(C2H3O2)2(aq) 2 LiC2H3O2(aq) + Hg2Cl2(s) 2 LiCl(aq) + Hg2(C2H3O2)2(aq) 2 LiC2H3O2(aq) + Hg2Cl2(s) 2 LiCl(aq) + Hg2(C2H3O2)2(aq) 2 LiC2H3O2(aq) + Hg2Cl2(s) 2 LiCl(aq) + Hg2(C2H3O2)2(aq) 2 LiC2H3O2(aq) + Hg2Cl2(s) 2 LiCl(aq) + Hg2(C2H3O2)2(aq) 2 LiC2H3O2(aq) + Hg2Cl2(s)

  40. Solubility and Reactions 2 HF(aq) + Ba(OH)2(aq) BaF2(s) + 2 H2O(l) 2 HF(aq) + Ba(OH)2(aq) BaF2(s) + 2 H2O(l) 2 HF(aq) + Ba(OH)2(aq) BaF2(s) + 2 H2O(l) 2 HF(aq) + Ba(OH)2(aq) BaF2(s) + 2 H2O(l) 2 HF(aq) + Ba(OH)2(aq) BaF2(s) + 2 H2O(l) K2CO3(aq) + 2 HClO4(aq) 2 KClO4(aq) + H2O(l) + CO2(g) K2CO3(aq) + 2 HClO4(aq) 2 KClO4(aq) + H2O(l) + CO2(g) K2CO3(aq) + 2 HClO4(aq) 2 KClO4(aq) + H2O(l) + CO2(g) K2CO3(aq) + 2 HClO4(aq) 2 KClO4(aq) + H2O(l) + CO2(g) K2CO3(aq) + 2 HClO4(aq) 2 KClO4(aq) + H2O(l) + CO2(g) K2CO3(aq) + 2 HClO4(aq) 2 KClO4(aq) + H2O(l) + CO2(g) 2 NaNO3(aq) + Mg(ClO3)2(aq) 2 NaClO3(aq) + Mg(NO3)2(aq) 2 NaNO3(aq) + Mg(ClO3)2(aq) 2 NaClO3(aq) + Mg(NO3)2(aq) 2 NaNO3(aq) + Mg(ClO3)2(aq) 2 NaClO3(aq) + Mg(NO3)2(aq) 2 NaNO3(aq) + Mg(ClO3)2(aq) 2 NaClO3(aq) + Mg(NO3)2(aq) 2 NaNO3(aq) + Mg(ClO3)2(aq) 2 NaClO3(aq) + Mg(NO3)2(aq)

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