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An acid releases H + ions into water. An a cid is a proton donator.

An acid releases H + ions into water. An a cid is a proton donator. Broenstedt -Lowry definitions for acids and bases. A base releases OH - ions into water. A base is a proton acceptor. When HCl dissolves in water, it acts as an acid and donates a proton to the water.

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An acid releases H + ions into water. An a cid is a proton donator.

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  1. An acid releases H+ ions into water. An acid is a proton donator. Broenstedt-Lowry definitions for acids and bases. A base releases OH- ions into water. A base is a proton acceptor.

  2. When HCl dissolves in water, it acts as an acid and donates a proton to the water. HCl + H2O Cl- + H3O+ donates a proton to form accepts a proton to form

  3. Metal oxides are bases. When oxides dissolve in water, they accept a proton from the water. O2- + H2O OH- + OH- accepts a proton to form donates a proton to form

  4. Which one of the following reactions are ACID/BASE reactions (proton transfers)? Identify the donor (acid) and the acceptor (base). Mg+ 2H+ → Mg2+ + H2 HCO3- + H2O → CO32- + H3O+ 2H2 + O2 → 2H2O HNO3 + H2O → NO3- + H3O+ ACID BASE ACID BASE

  5. If the acid-base reaction is an equilibrium reaction, we can identify conjugate acid-base pairs: CH3COOH + H2O CH3COO- + H3O+ ACID BASE BASE ACID

  6. Last year you learned that when an acid reacts with a base the product is a (neutral) salt and water. This is strictly speaking not quite true, as salts can still be slightly acidic or basic. Acidic or basic salts react with water to produce H3O+ or OH- ions. CO32- + H2O → ? + OH- NH4+ + H2O → ? + H3O+ HCO3- NH3

  7. Complete ex. 18A on p 157

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