16: Reactions of Acids and Bases
- Page ID
- 118871
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- 16.1: Reactions of Acids and Bases
- When an acid and a base are combined, water and a salt are the products. Salts are ionic compounds containing a positive ion other than H+ and a negative ion other than the hydroxide ion, OH-. Double displacement reactions of this type are called neutralization reactions. Salt solutions do not always have a pH of 7, however. Through a process known as hydrolysis, the ions produced when an acid and base combine may react with the water to produce slightly acidic or basic solutions.
- 16.2: Buffers: Solutions That Resist pH Change
- A buffer is a solution that resists dramatic changes in pH. Buffers do so by being composed of certain pairs of solutes: either a weak acid plus a salt derived from that weak acid or a weak base plus a salt of that weak base.
- 16.3: Acid–Base and Gas Evolution Reactions
- A gas evolution reaction is a chemical process that produces a gas, such as oxygen or carbon dioxide.
Thumbnail: Copper Penny reacting with Nitric Acid.