Elements, Compounds, and Mixtures

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together. Example: Water (H2O) is a compound made of hydrogen and oxygen.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. Example: Iron (Fe) is an element.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded. Example: Salad is a mixture of various vegetables.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout. Example: Dr. Pepper is a homogeneous mixture.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture where the components can be seen and are not uniform. Example: Vegetable soup is a heterogeneous mixture.

Front

How many atoms make up an element?

Back

An element is made of ONE type of atom.

Front

Is air considered matter?

Back

True, air is considered matter because it has mass and occupies space.

Front

What is the difference between a compound and a mixture?

Back

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

Front

Can compounds be separated into their elements?

Back

Yes, compounds can be separated into their elements through chemical reactions.

Front

What is an example of a compound?

Back

Hydrogen Sulfide Gas (H2S) is an example of a compound.