Physical and Chemical Properties

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances, involving a rearrangement of atoms.

Front

Is melting ice a physical or chemical change?

Back

Physical change.

Front

Is burning wood a physical or chemical change?

Back

Chemical change.

Front

What is a physical property?

Back

A physical property is a characteristic of a substance that can be observed or measured without changing the substance's chemical identity.

Front

What is a chemical property?

Back

A chemical property is a characteristic of a substance that becomes evident during a chemical reaction, indicating how a substance interacts with other substances.

Front

Give an example of a physical property.

Back

Color, density, melting point, boiling point, and solubility are examples of physical properties.

Front

Give an example of a chemical property.

Back

Reactivity with acids, flammability, and oxidation states are examples of chemical properties.

Front

What happens to the molecules during a physical change?

Back

The molecules may change their state or appearance, but their chemical structure remains the same.

Front

What happens to the molecules during a chemical change?

Back

The molecules undergo a transformation that alters their chemical structure, resulting in new substances.