AqueousReactions - Reactions in Aqueous Solutions 1)...

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Reactions in Aqueous Solutions 1) Precipitation Reactions – ions combine to form an insoluble product: Example: Ag + (aq) + Cl - (aq) AgCl (s) (net ionic equation) (transfer/exchange of ions → precipitation of solid from solution) (need to know Solubility Rules, p. 179, Figure 5.3) 1) Acid-Base Reactions – H + and OH - ions combine to form H 2 O: Example: H + (aq) + OH - (aq) H 2 O (l) (net ionic equation) (transfer/exchange of H + ion(s)/“proton(s)” → neutralization) 1) Gas-Forming Reactions – reaction with acid forms insoluble gas: Ex: CaCO 3(s) + 2H + (aq) Ca 2+ (aq) + H 2 O (l) + CO 2(g) Ex: NaHSO 3(s) + H + (aq) Na + (aq) + H 2 O (l) + SO 2(g) Ex: Metal (s) + 2H + (aq) H 2(g) + ions (aq) Ex: NH 4 + (aq) + OH - (aq) NH 3(g) + H 2 O (l) (transfer/exchange of H + ion(s)/“proton(s)” → gas formation)
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1) Oxidation-Reduction Reactions – transfer/exchange of electrons, resulting in the “oxidation” (loss of electrons) and “reduction” (gain of electrons) of reaction participants: Example: reduction of iron ore to iron metal in blast furnace: Fe 2 O 3(s) + 3CO (g) → 2Fe (s) + 3CO 2(g) CO is “oxidized” to form CO
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This note was uploaded on 07/15/2011 for the course CHEM 2045 taught by Professor Gower during the Spring '11 term at University of Florida.

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AqueousReactions - Reactions in Aqueous Solutions 1)...

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