Elements, Mixtures, and Compounds

Front

What is an element?

Back

A substance that cannot be broken down into simpler substances and consists of only one type of atom.

Front

What is a compound?

Back

A substance formed when two or more different elements are chemically bonded together.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

Which element makes up most of Earth's atmosphere?

Back

Nitrogen.

Front

What is the difference between a mixture and a compound?

Back

A mixture retains the properties of its individual components, while a compound has different properties from the elements that make it up.

Front

What is a molecule?

Back

A group of two or more atoms bonded together, which can be of the same or different elements.

Front

Can a compound be broken down into simpler substances?

Back

Yes, compounds can be broken down into their constituent elements through chemical reactions.

Front

What is an example of a mixture?

Back

Trail mix, which contains various nuts, fruits, and chocolates.

Front

What is an example of a compound?

Back

Water (H2O), which is made of hydrogen and oxygen.

Front

What is the main component of air?

Back

Nitrogen, which makes up about 78% of Earth's atmosphere.