Glossary of chapter 19 chem vocab
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- The negative logarithm of the hydroxide ion concentration of a solution; a solution with a value above 7.0 is acidic; a value below 7.0 is basic; a value of 7.0 is neutral.
- acid-base indicator
- A chemical dye whose color is affected by acidic and basic solutions.
- Arrhenius model
- States that an acid contains hydrogen and ionizes to produce hydrogen ions in solution and a base contains a hydroxide group dissociates to produce a hydroxide ion in solution.
- conjugate base
- The species produced when an acid donates a hydrogen ion to a base.
- weak base
- A base that ionizes only partially in dilute aqueous solution to form the conjugate acid of the base and hydroxide ion.
- weak acid
- An acid that ionizes only partially in dilute aqueous solution.
- The negative logarithm of the hydrogen ion concentration of a solution; acidic solutions have values between 0 and 7; basic solutions have values between 7 and 14; a value of 7.0 is neutral.
- strong base
- A base that dissociates entirely into metal ions and hydroxide ions in aqueous solution.
- basic solution
- Contains more hydroxide ions that hydrogen ions.
- Describes water and other substances that can act as both acids and bases.
- acidic solution
- Contains more hydrogen ions than hydroxide ions.
- strong acid
- An acid that ionizes completely in aqueous solution.
- Bronsted-Lowry model
- A model of acids and bases in which an acid is a hydrogen-ion donor and a base is a hydrogen-ion acceptor.
- An ionic compound made up of a cation from a base an anion from an acid.
- conjugate acid
- The species produced when a base accepts a hydrogen ion from an acid.
- neutralization reaction
- A reaction in which an acid and a base react in aqueous solution to produce a salt and water.
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