Chemical and Physical Changes

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, boiling point, or malleability.

Front

What is a chemical property?

Back

A characteristic of a substance that describes its ability to change into different substances, such as flammability or reactivity.

Front

Define malleability.

Back

The ability of a substance to be deformed or shaped under pressure, often without breaking.

Front

What is a chemical change?

Back

A process that involves the transformation of one or more substances into new substances with different properties.

Front

What is a physical change?

Back

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

Front

Give an example of a chemical change.

Back

Iron rusting is an example of a chemical change, as it forms a new substance (iron oxide).

Front

Give an example of a physical change.

Back

Melting ice into water is an example of a physical change, as the substance remains H2O.

Front

What happens during a chemical reaction?

Back

During a chemical reaction, bonds between atoms are broken and new bonds are formed, resulting in the creation of new substances.

Front

What is the boiling point?

Back

The temperature at which a liquid turns into vapor; it is a physical property.

Front

What is flammability?

Back

Flammability is a chemical property that describes how easily a substance can ignite and burn.