IPC: Unit 2 Review

When two or more kinds of matter combine and retain their own characteristic properties, that sample is called ____.

• an ore

• a compound

• a pure substance

• a mixture

A substance with fixed proportions of 11.2% hydrogen and 88.8% oxygen (H₂O) by mass must be a ____.

• a mixture

• a solution

• heterogeneous

• a compound

Tags

NGSS.MS-PS1-1

A pure substance is a(n) ____.

• mixture or element

• solution

• element or chemical compound

• element or solution

Identify the following as EITHER an element, compound, homogeneous mixture, or heterogeneous mixture.

Coca-Cola

• element

• compound

• homogeneous mixture

• heterogeneous mixture

Identify the following as EITHER an element, compound, homogeneous mixture, or heterogeneous mixture.

Fruit salad

• element

• compound

• homogeneous mixture

• heterogeneous mixture

Identify the following as EITHER an element, compound, homogeneous mixture, or heterogeneous mixture.

Air

• element

• compound

• homogeneous mixture

• heterogeneous mixture

Identify the following as EITHER an element, compound, homogeneous mixture, or heterogeneous mixture.

Water (H₂0)

• element

• compound

• homogeneous mixture

• heterogeneous mixture

Tags

NGSS.MS-PS1-1

Identify the following as EITHER an element, compound, homogeneous mixture, or heterogeneous mixture.

Nitrogen gas (N₂)

• element

• compound

• homogeneous mixture

• heterogeneous mixture

Tags

NGSS.MS-PS1-1

Identify the following as EITHER an element, compound, homogeneous mixture, or heterogeneous mixture.

Iron (Fe)

• element

• compound

• homogeneous mixture

• heterogeneous mixture

Tags

NGSS.MS-PS1-1

Which separation technique pours off the top layer?

• boiling

• decanting

• distillation

• magnets