Compounds, Mixtures, Elements

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded. Examples include milk and salad.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include oxygen and hydrogen.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together. An example is carbon dioxide (CO2).

Front

What is the building block of matter?

Back

The building block of matter is an atom.

Front

Is air a mixture, compound, or element?

Back

Air is a mixture.

Front

What are some examples of mixtures?

Back

Examples of mixtures include salad, air, and gasoline.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a physical combination of substances, while a compound is a chemical combination of elements.

Front

Can mixtures be separated easily?

Back

Yes, mixtures can be separated by physical means such as filtration or evaporation.

Front

What is an example of a compound?

Back

An example of a compound is water (H2O), which is made of hydrogen and oxygen.

Front

What happens to the properties of elements when they form a compound?

Back

The properties of the resulting compound can be very different from the properties of the individual elements.