Chemical Reactions and Equations

Problem 1: Net Ionic Reaction

  • Balanced Molecular Equation:
    2extAgNO<em>3(aq)+extK</em>2extSO<em>4(aq)→2extKNO</em>3(aq)+extAg<em>2extSO</em>4(s)2 ext{AgNO}<em>3 (aq) + ext{K}</em>2 ext{SO}<em>4 (aq) \rightarrow 2 ext{KNO}</em>3 (aq) + ext{Ag}<em>2 ext{SO}</em>4 (s)
  • Net Ionic Equation:
    2extAg+(aq)+extSO<em>42−(aq)→extAg</em>2extSO4(s)2 ext{Ag}^+ (aq) + ext{SO}<em>4^{2-} (aq) \rightarrow ext{Ag}</em>2 ext{SO}_4 (s)

Problem 2: Spectator Ions

  • Balanced Molecular Equation:
    2extAgNO<em>3(aq)+extK</em>2extSO<em>4(aq)→2extKNO</em>3(aq)+extAg<em>2extSO</em>4(s)2 ext{AgNO}<em>3 (aq) + ext{K}</em>2 ext{SO}<em>4 (aq) \rightarrow 2 ext{KNO}</em>3 (aq) + ext{Ag}<em>2 ext{SO}</em>4 (s)
  • Spectator Ions:
    • Potassium ions extK+(aq)ext{K}^+ (aq)
    • Nitrate ions extNO3−(aq)ext{NO}_3^{-} (aq)

Problem 3: Complete Ionic Equation for Barium Chloride and Ammonium Carbonate

  • Reaction: Aqueous Barium chloride reacts with aqueous ammonium carbonate, forming a white precipitate.
  • Complete Ionic Equation:
    extBa2+(aq)+2extCl−(aq)+2extNH<em>4+(aq)+extCO</em>32−(aq)→extBaCO<em>3(s)+2extCl−(aq)+2extNH</em>4+(aq)ext{Ba}^{2+} (aq) + 2 ext{Cl}^{-} (aq) + 2 ext{NH}<em>4^{+} (aq) + ext{CO}</em>3^{2-} (aq) \rightarrow ext{BaCO}<em>3 (s) + 2 ext{Cl}^{-} (aq) + 2 ext{NH}</em>4^{+} (aq)

Problem 4: Fizzing in Barium Carbonate and Hydrochloric Acid Reaction

  • Reaction: Aqueous Barium carbonate reacts with aqueous hydrochloric acid.
  • Observation: The solution fizzes vigorously.
  • Cause of Fizzing: Resulting gas evolution from the reaction.

Problem 5: Molecular and Net Ionic Equations for Hydrochloric Acid and Barium Carbonate

  • Molecular Equation:
    extBaCO<em>3(s)+2extHCl(aq)→extBaCl</em>2(aq)+extH<em>2extO(l)+extCO</em>2(g)ext{BaCO}<em>3 (s) + 2 ext{HCl} (aq) \rightarrow ext{BaCl}</em>2 (aq) + ext{H}<em>2 ext{O} (l) + ext{CO}</em>2 (g)
  • Net Ionic Equation:
    extBaCO<em>3(s)+2extH+(aq)→extBa2+(aq)+extH</em>2extO(l)+extCO2(g)ext{BaCO}<em>3 (s) + 2 ext{H}^+ (aq) \rightarrow ext{Ba}^{2+} (aq) + ext{H}</em>2 ext{O} (l) + ext{CO}_2 (g)