Elements, Compounds, Mixtures

Front

What is a mixture?

Back

A mixture is two or more substances in the same place but NOT chemically combined or in a specific ratio.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that is so evenly mixed that you can't see the individual parts, such as Kool-Aid.

Front

What is a compound?

Back

A compound is a substance made of two or more different types of atoms chemically bonded together.

Tags

NGSS.MS-PS1-1

Front

What is an element?

Back

An element is a substance that cannot be broken down into any other substance by ordinary chemical means.

Front

What is the difference between a compound and a mixture?

Back

A compound is made of different atoms chemically combined, while a mixture consists of two or more substances that are not chemically combined.

Front

Give an example of a compound.

Back

Sodium bicarbonate (NaHCO3) is an example of a compound.

Front

What are the two main types of mixtures?

Back

The two main types of mixtures are homogeneous mixtures and heterogeneous mixtures.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture where the individual substances remain distinct and can be seen, such as a salad.

Front

Can elements be broken down into simpler substances?

Back

No, elements cannot be broken down into simpler substances by ordinary chemical means.

Front

What is the smallest unit of a compound?

Back

The smallest unit of a compound is a molecule.

Tags

NGSS.MS-PS1-1