Elements, Compounds and Mixtures

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated physically.

Front

What is a compound?

Back

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

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

How can you identify a mixture?

Back

A mixture can be identified by its ability to be separated into its individual components by physical means.

Front

What is the chemical symbol for iron?

Back

Fe

Front

What distinguishes a pure substance from a mixture?

Back

A pure substance has a uniform and definite composition, while a mixture contains two or more substances that retain their individual properties.

Front

Can mixtures be homogeneous or heterogeneous?

Back

Yes, mixtures can be homogeneous (uniform composition) or heterogeneous (distinct, separate components).

Front

What happens when you add raspberries to a bowl of blueberries?

Back

You create a mixture.

Front

What is the chemical formula for carbon dioxide?

Back

CO2

Front

How many elements are in the periodic table?

Back

There are currently 118 known elements in the periodic table.