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Predicting Products

Predicting Products. Single Displacement. Use activity series of metals If metal C is more active than A, then it replaces less active metal A. AB + C  CB + A If metal F is less reactive than metal D, it cannot bump off D & reaction does not occur DE + F  no reaction.

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Predicting Products

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  1. Predicting Products

  2. Single Displacement Use activity series of metals • If metal C is more active than A, then it replaces less active metal A. AB + C  CB + A • If metal F is less reactive than metal D, it cannot bump off D & reaction does not occur DE + F  no reaction

  3. Activity Series p 148 • General Trends of metal activity (how well they can displace): • Lighter metals bump off heavier metals • Metals with +1 charges will bump metals with +2 charges • How to read table 4-12: the higher up a metal, the more active it is. • Not perfect trends: • Ca2+ displaces Na+

  4. NaCl + F2 --->NaF + Cl2NaF + Cl2 --->No reaction

  5. MgCl2 + Na KBr + Cl2FeCl3 + Cu Na2SO4 + Cu 

  6. Double Displacement or Metathesis • Use solubility tables p134 – 135 • For rxn to occur, precipitate (ppt) must form

  7. BaCl2(aq)+ K2SO4(aq)----->BaSO4(s)+ KCl(aq)

  8. 3 ways to write reactions (when they’re in aqueous solutions): (p136) • Formula unit equations 2 AgNO3 (aq) + Cu (s)  2 Ag (s) + Cu(NO3) (aq) • Total Ionic equations 2 [Ag+(aq) + NO3- (aq)] + Cu(s)  2 Ag (s) + [Cu+(aq) + 2NO3- (aq) • Net Ionic equations 2 Ag+ (aq) + Cu (s)  2 Ag (s) + Cu2+ (aq)

  9. NaCl(aq) + KBr(aq) -----> NaBr(aq) + KCl(aq) How is this reaction written? Rewrite as total ionic. Can you rewrite as net ionic? No! Only spectator ions!

  10. Na+ (aq) + Cl- (aq) + K+ (aq) + Br- (aq) -----> Na+ (aq) Br- (aq) + K+ (aq) + Cl- (aq)

  11. DD or Metathesis • Acid-base: • When an acid is combined with a base, the products will be salt & water

  12. HCl(aq) + NaOH(aq)----->NaCl(aq) + H2O(l)

  13. Mg(OH)2(aq) + H2SO4(aq)MgSO4(aq) + H2O(l)

  14. Ba(OH)2(aq) + CaCl2(aq)ZnCl2(aq) + K2CrO4(aq)KCl(aq) + Na2SO4(aq)

  15. HCl(aq) + NaOH(aq)H2SO4(aq) + KOH(aq)HCl(aq) + NH3(aq)

  16. Combustion • Carbon compound + oxygen yields Carbon dioxide & water

  17. C3H6(g) + O2(g)C4H8O(l) + O2(g) C4H8O4(g) + O2(g)

  18. Predict Products & Balance Rxn • CaCl2 + F2 • CaCl2 + Na  • CaCl2 + KNO3 • CaCl2 + K2SO4

  19. Predict & Balance • AlBr3 + F2 • AlBr3 + Zn  • AlBr3 + Na  • AlBr3 + Ba(NO3)2 • AlBr3 + K2SO4

  20. Calculate the mass of solid product formed when 4.16 g of barium chloride is added to 250 ml of 0.40 M potassium sulfate:

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