Chemistry Investigations 3-5 Flashcards

Flashcards covering key concepts from Chemistry Investigations 3-5 Study Guide, including particle behavior, chemical reactions, energy transfer, and temperature relationships.

Volume Increase

When you increase the volume of a container, the amount of particles stays the same.

Volume Decrease

When you decrease the volume of a container, the amount of particles stays the same.

Volume Increase (Gas Particles)

As you increase the volume of a container, the space between gas particles increases.

Volume Decrease (Gas Particles)

As you decrease the volume of a container, the space between gas particles decreases.

Space Between Particles

Empty space exists between solid, liquid, and gas particles.

Chemical Reaction Indicator

A chemical reaction is indicated by changes such as color change, precipitate formation, gas production, or temperature change.

Heating Solids, Liquids, Gases

When you heat solids, liquids, and gases, their kinetic energy increases, and the space between particles generally increases.

Cooling Solids, Liquids, Gases

When you cool solids, liquids, and gases, their kinetic energy decreases, and the space between particles generally decreases.

Thermometer Function

A thermometer works by energy transfer. The substance in the thermometer gains or loses energy until it reaches thermal equilibrium with its surroundings. This changes the kinetic energy of the substance, usually causing it to expand or contract.

Hot Thermometer Line

The thermometer line would be higher when it is hot.

Cold Thermometer Line

The thermometer line would be lower when it is cold.

Temperature and Kinetic Energy

Temperature is directly related to kinetic energy; as temperature increases, kinetic energy increases.

Energy Transfer

Energy transfers from areas of higher temperature to areas of lower temperature.

Particle Collisions Impact

Particle collisions transfer kinetic energy, leading to energy transfer.