Mixtures and pure substances

the smallest unit of an element that maintains the properties of the element.

• Element

• pure substance

• mixture

• atom

Tags

NGSS.MS-PS1-1

made up of one or more of the same kind of atom chemically combined.

• Element

• pure substance

• mixture

• atom

made up of different kinds of atoms chemically combined

• Element

• pure substance

• compound

• atom

Tags

NGSS.MS-PS1-1

a substance that has definite physical and chemical properties such as appearance, melting point, and reactivity.

• Element

• pure substance

• compound

• atom

contains a variety of elements and compounds that are not chemically combined with each other.

• Element

• mixture

• compound

• atom

a mixture that does not have uniform composition and can easily be separated.

• heterogenous mixture

• homogenous mixture

a mixture that does have uniform composition and can not easily be separated.

• heterogenous mixture

• homogenous mixture