Elements, Compounds, Mixtures

Front

What is sodium chloride classified as?

Back

Sodium chloride (NaCl) is classified as a compound.

Front

What is a substance made of only one type of atom called?

Back

A substance made of only one type of atom is called an element.

Front

How many types of atoms are in K₂SO₄?

Back

There are 3 types of atoms in K₂SO₄: potassium (K), sulfur (S), and oxygen (O).

Front

What is the chemical symbol for Iron?

Back

The chemical symbol for Iron is Fe.

Front

What does a mixture of elements and compounds illustrate?

Back

A mixture of elements and compounds illustrates the combination of different substances that retain their individual properties.

Front

Define an element.

Back

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

Front

Define a compound.

Back

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

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 by physical means.

Front

Give an example of a compound.

Back

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

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.