Classifying Matter

Any material consisting of only one type of atom is classified as what?

• A compound

• An element

• A heterogeneous mixture

• A homogeneous mixture

When different atoms combine _______ are formed.

• compounds

• elements

• heterogeneous mixtures

• homogeneous mixtures

Tags

NGSS.MS-PS1-1

A compound is represented by its _______.

• atomic number

• chemical number

• chemical formula

• number of atoms

Tags

NGSS.MS-PS1-1

Most materials we use and encounter daily are ______.

• elements

• compounds

• pure substances

• mixtures

Which classification of matter is a pure substance?

• Elements

• Elements and compounds

• Compounds

• Elements and mixtures

• Mixtures

A material made of combined substances that each retain their own properties is called what?

• A mixture

• A compound

• A pure substance

• An element

In a ______ mixture, the material has the same composition throughout.

• heterogeneous

• homogeneous

What is the difference between an element and a compound?

• Elements are made of more than one atom.

• Compounds have uniform composition.

• Compounds are made of more than one type of atom.

• Only elements are pure substances.

Tags

NGSS.MS-PS1-1

_______ can be separated by physical means.

• An element

• A compound

• Pure substances

• Mixtures

In a ______ mixture, each substance can be easily distinguished.

• heterogeneous

• homogeneous