Foundatons of Chemistry

Chemical equations are used to describe

• changes in state

• Chemical changes

• chemical properties

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Color change, odor change, and bubbles are signs that a ________ might have occurred.

• energy change

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Magnetism is a physical property that could be used to separate a mixture of

• sugar and salt

• salt and water

• iron filings and sand

occurs when thermal energy is added to a liquid

• melting

• dissolving

• boiling

• freezing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

occurs when a solute mixes evenly in a solvent

• melting

• dissolving

• boiling

• freezing

Tags

NGSS.MS-PS1-2

occurs when thermal energy is added to a solid

• melting

• dissolving

• boiling

• freezing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

occurs when thermal energy is removed from a liquid

• melting

• dissolving

• boiling

• freezing

Tags

NGSS.MS-PS1-4

matter that consists of just one kind of atom

• element

• compound

• homogeneous mixture

• heterogeneous mixture

matter in which individual substances are not evenly mixed

• element

• compound

• homogeneous mixture

• heterogeneous mixture

matter containing atoms of two or more elements chemically bonded together

• element

• compound

• homogeneous mixture

• heterogeneous mixture

Tags

NGSS.MS-PS1-1