2.2 Vocabulary

Front

What is capillary action?

Back

Capillary action is the movement of liquid upward in a small tube due to the forces of cohesion (attraction between similar molecules) and adhesion (attraction between different molecules).

Front

What is a buffer?

Back

A buffer is a compound that prevents sharp, sudden changes in pH, helping to maintain a stable environment in solutions.

Front

What is a solution?

Back

A solution is a homogeneous mixture formed when a solute (like salt) is dissolved in a solvent (like water).

Front

What is a mixture?

Back

A mixture is a material composed of two or more elements or compounds that are physically mixed together but not chemically combined.

Front

What is the pH of neutral water?

Back

The pH of neutral water is 7.

Front

Define cohesion.

Back

Cohesion is the attraction between molecules of the same substance, which causes them to stick together.

Front

Define adhesion.

Back

Adhesion is the attraction between molecules of different substances, which causes them to stick together.

Front

What is the difference between a compound and a mixture?

Back

A compound is a substance formed when two or more elements are chemically bonded together, while a mixture is a combination of substances that are not chemically bonded.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solvent to form a solution.

Front

What is a suspension?

Back

A suspension is a heterogeneous mixture in which solid particles are dispersed in a liquid but are not dissolved.