8.6 A Check #1

Front

What are the three main classifications of matter?

Back

Elements, Compounds, and Mixtures.

Front

Why is it important to classify matter into elements, compounds, and mixtures?

Back

To understand the chemical properties and reactions.

Front

What is a compound?

Back

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

Tags

NGSS.MS-PS1-1

Front

How do the properties of compounds compare to their component elements?

Back

Compounds have properties different from their component elements.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is the difference between a homogeneous mixture and a heterogeneous mixture?

Back

A homogeneous mixture has a uniform composition, while a heterogeneous mixture has a non-uniform composition.

Front

Give an example of a homogeneous mixture.

Back

Saltwater.

Front

Give an example of a heterogeneous mixture.

Back

Salad.

Front

How can you separate a mixture of iron filings and sulfur?

Back

By using a magnet.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.