Semester 1 Final Revu

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances, often accompanied by energy changes, color changes, or gas production.

Front

What observation indicates a chemical change has occurred?

Back

A change in temperature can indicate a chemical change, as it suggests a reaction is taking place.

Front

What is an ionic bond?

Back

An ionic bond is a type of chemical bond formed through the transfer of electrons from one atom (usually a metal) to another (usually a nonmetal), resulting in the formation of charged ions.

Front

How do metals and nonmetals form ions?

Back

Metals form ions by losing electrons, while nonmetals form ions by gaining electrons.

Front

What is the phase change from gas to liquid called?

Back

The phase change from gas to liquid is called condensation.

Front

How do particles in a solid move?

Back

Particles in a solid vibrate in place and do not move freely.

Front

What is the difference between physical and chemical changes?

Back

Physical changes alter the form of a substance without changing its chemical composition, while chemical changes result in the formation of new substances.

Front

What is vaporization?

Back

Vaporization is the phase change from liquid to gas, which can occur through boiling or evaporation.

Front

What is freezing?

Back

Freezing is the phase change from liquid to solid, occurring when a liquid loses heat.

Front

What is deposition?

Back

Deposition is the phase change from gas directly to solid, bypassing the liquid state.