Identifying Elements and Compounds

A substance that contains all the same type of atom is:

• An element

• A compound

• A heterogeneous mixture

• A homogeneous mixture

Tags

NGSS.MS-PS1-1

A substance that is composed of two or more elements chemically combined in an exact proportion:

• An element

• A compound

• A heterogeneous mixture

• A homogeneous mixture

Tags

NGSS.MS-PS1-1

TRUE OR FALSE: Substances in a mixture keep their original properties.

• True

• False

Tags

NGSS.MS-PS1-2

TRUE OR FALSE: Elements in a compound keep the same properties as the elements on their own.

• True

• False

Tags

NGSS.MS-PS1-1

This model best represents:

• Atoms of an element

• Molecules of an element

• A compound

• A mixture of elements

Tags

NGSS.MS-PS1-1

This model best represents:

• Atoms of an element

• Molecules of an element

• A compound

• A mixture of compounds

Tags

NGSS.MS-PS1-1

This model best represents:

• Atoms of an element

• Molecules of an element

• A compound

• A mixture of elements

Tags

NGSS.MS-PS1-1

This model best represents:

• An element

• A compound

• A mixture of elements

• A mixture of elements and a compound

Tags

NGSS.MS-PS1-1

The smallest unit of an element that keeps the same properties of that element is a(n):

• Electron

• Atom

• Molecule

• Compound

Tags

NGSS.MS-PS1-1

The smallest unit of a compound that keeps the same properties of that compound is a(n):

• Electron

• Atom

• Molecule

• Element

Tags

NGSS.MS-PS1-1