Unit 4 vocab + states, physical + chemical changes + law consv

What is a mixture?

• A single substance

• Two or more substances that are together in the same place but their atoms are not chemically bonded

• A chemical compound

• A pure element.

Fill in the blank: A mixture consists of two or more substances that are together in the same place but their atoms are not ________ bonded.

• chemically

• physically

• molecularly

• ionically

What is solubility?

• The ability of a substance to dissolve in a solvent

• The temperature at which a substance melts

• The capacity of a substance to conduct electricity

• The process of decreasing the density of a substance

Which of the following substances dissolves in water?

• Sugar

• Olive Oil

• Both

• None

What does the term 'Dissolve' mean?

• How substances separate in a solution.

• How substances mix to form a solution.

• How substances evaporate in a solution.

• How substances freeze in a solution.

Fill in the blank: A physical property is a characteristic of a pure substance that can be observed without changing into another ________.

• substance

• element

• compound

• mixture

What is the definition of density?

• The amount of space an object occupies

• The measurement of how much mass of a substance is contained in a given volume

• The weight of an object

• The temperature of a substance

What is the process called when a substance changes from a solid to a liquid?

• Freezing

• Melting

• Evaporation

• Condensation

Tags

NGSS.MS-PS1-4

What is the process called when a substance changes from a liquid to a solid?

• Melting

• Freezing

• Evaporation

• Condensation

Tags

NGSS.MS-PS1-4

What is the boiling point?

• The temperature at which a solid melts

• The temperature at which a liquid boils

• The temperature at which a gas condenses

• The temperature at which a liquid freezes

Tags

NGSS.MS-PS1-4