Elements, Compounds and Mixtures Review

Which substance is comprised of more than one element?

• helium

• aluminum

• silver

• steel

Tags

NGSS.MS-PS1-1

Each ball shown in the diagram represents a type of atom. Balls of the same shade and size represent the same kind of atom. Which diagram shows a mixture?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Granite forms when magma cools slowly, deep underground, into large crystals composed of the minerals quartz, feldspar, and mica. How would granite be classified?

• compound

• heterogeneous mixture

• homogeneous mixture

• solution

Tags

NGSS.MS-PS1-1

Ammonia is made up of two pure substances: nitrogen and hydrogen. What can be true for ammonia, nitrogen, and hydrogen?

• Ammonia is a mixture, and nitrogen and hydrogen are elements.

• Ammonia is a mixture, and nitrogen and hydrogen are compounds

• Ammonia is a compound, and nitrogen and hydrogen are elements.

• Ammonia is an element, and nitrogen and hydrogen are compounds.

Tags

NGSS.MS-PS1-1

The image shows the atomic arrangements of four different substances. Which are compounds and why?

• hydrogen because it contains only one kind of atom

• methane because it contains the maximum number of molecules

• water and carbon dioxide because each contains a similar number of molecules

• water, carbon dioxide, and methane because each contains more than one element

Tags

NGSS.MS-PS1-1

Study the flow chart showing the organization of matter. What term is missing as indicated by the question mark in the flow chart?

• compounds

• metals

• molecules

• solutions

Tags

NGSS.MS-PS1-1

Water, a stable liquid, is formed when two flammable gases, hydrogen and oxygen, combine. What has happened?

• An atom has been created.

• A compound has been created.

• A mixture has been created.

• An element has been created.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Which term refers to matter that could be heterogeneous?

• compound

• element

• mixture

• solution

Matter can be classified in different ways.

• cell

• compound

• element

• mixture

Tags

NGSS.MS-PS1-1

Jamie poured a mixture of sand and salt water into a beaker through a funnel lined with filter paper. What will be found in the beaker after filtering?

• salt only

• sand only

• salt and water

• salt and sand

Tags

NGSS.MS-PS1-2