Semester Review

Front

What is a physical property?

Back

A characteristic of a substance that can be observed or measured without changing its identity, such as color, density, or melting point.

Front

Give an example of a physical property.

Back

Silver is shiny.

Front

What is an exothermic reaction?

Back

A chemical reaction that releases heat to the surroundings.

Front

What is a chemical property?

Back

A characteristic of a substance that can only be observed when it undergoes a chemical change, such as reactivity or flammability.

Front

What kind of properties can only be observed when a substance changes into a different substance?

Back

Chemical properties.

Front

Is density a chemical or physical property?

Back

Physical property.

Front

What is the definition of a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

Is salt (NaCl) an element, compound, or mixture?

Back

Compound.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.