Physical Science - Chapter 10

Buffer

Buffer

a weak acid or base in solution that resists changes in pH when a moderate amount of either an acid or base is added.

Indicator

a substance that changes color in the presence of an acid or base.

Neutralization

a double- replacement reaction between an acid and a base that produces a salt and water.

pH

a unitless number between 0 and 14 that tells how acidic or basic a substance is.

Acid

a substance that produces hydrogen ions in an aqueous solution.

Salt

an ionic compound formed by a combination of cations and anions.

Hydroxide ion

an ion formed by oxygen and hydrogen.

Aqueous solution

a water- based solution.

base

a substance that produces hydroxide ions in an aqueous solution.

acid

a substance that produces hydrogen ions in an aqueous solution

aqueous solution

a water-based solution

hydronium ion

an ion formed by the combination of a water molecule and a hydrogen ion

indicator

a substance that changes color in the presence of an acid or base

base

a substance that produces hydroxide ions in an aqueous solution

hydroxide ion

an ion formed by oxygen and hydrogen

strong acid

an acid in which all or most of the molecules produce hydrogen ions in an aqueous solution

weak acid

an acid that produces few hydrogen ions in an aqueous solution

strong base

a base that readily produces large numbers of hydroxide ions in an aqueous solution

weak base

a base that produces few hydroxide ions in an aqueous solution

pH

a unitless number between 0 and 14 that tells how acidic or basic a substance is

buffer

a weak acid or base in solution that resists changes in pH when a moderate amount of either an acid or base is added

salt

an ionic compound formed by a combination of cations and anions

neutralization

a double-replacement reaction between an acid and a base that produces a salt and water

hydronium ion

an ion formed by the combination of a water molecule and a hydrogen ion

strong acid

an acid in which all or most of the molecules produce hydrogen ions in an aqueous solution

weak acid

an acid that produces few hydrogen ions in an aqueous solution

strong base

a base that readily produces large numbers of hydroxide ions in an aqueous solution

weak base

a base that produces few hydroxide ions in an aqueous solution