Elements, compounds, mixtures

A substance that contains only one type of atom is a(n)

• compound
• element
• heterogeneous mixture
• homogeneous mixture

Which of these is a pure substance?

• bread
• table salt
• garden soil
• sea water

Tags

NGSS.MS-PS1-4

A mixture that appears to be evenly mixed throughout:

• an atom
• a compound
• a homogeneous mixture
• a heterogeneous mixture

A mixture that does NOT appear to be evenly mixed throughout is ______.

• an atom

• a compound

• a homogeneous mixture

• a heterogeneous mixture

_______ is used to separate a solid from a liquid in which it is suspended.

• filtration

• distillation

• suspension

• colloid

_______ is a mixture in which particles will settle out.

• suspension

• colloid

• compound

• solvent

A _______ _________ is what we call when the composition is not uniform throughout.

• homogeneous mixture

• heterogeneous mixture

Sugar water is a 

• solution
• suspension
• colloid

Milk is a 

• solution
• suspension
• colloid

What type of mixture separates upon standing?

• Solution
• Alloy
• Colloid
• Suspension