Chemical and Physical Properties

Front

What is a physical property?

Back

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

Front

What is a chemical property?

Back

A characteristic of a substance that describes its ability to undergo a specific chemical change, such as reactivity with acid or flammability.

Front

Which of the following is an example of a physical property?

Back

State of matter.

Front

What does reactivity (bubbling, fizzing) indicate?

Back

It indicates a chemical property.

Front

What is the Law of Conservation of Mass?

Back

It states that matter cannot be created or destroyed in a chemical reaction.

Front

What does it mean for a chemical equation to be balanced?

Back

It means that the number of atoms of each element is the same on both sides of the equation.

Front

Is the equation Al + O2 → 2Al2O3 balanced?

Back

No, it is not balanced.

Front

In the equation CH4 + 2 O2 → CO2 + 2 H2O, what is CH4?

Back

CH4 is a reactant.

Front

What is the difference between a reactant and a product?

Back

A reactant is a substance that starts a chemical reaction, while a product is a substance formed as a result of the reaction.

Front

What is flammability?

Back

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