Unit 4: Elements, Compounds, and Mixtures

Mixtures are different than pure substances because mixtures-

• have lower boiling points

• can be separated physically

• are less dense than pure substances

• contain only one type of atom

Compounds can only be separated by ____ means. 

• Chemical
• Physical
• Neutral
• Psychedelic

Mixtures are __________ combined.

• Chemically
• Physically
• Magically
• Spontaneously

Homogeneous mixtures are the _______ throughout.

• Different
• Same
• Uneven

Heterogeneous mixtures have a(n) ___________ distribution of particles.

• Even

• Similar

• Uneven

• uniform

Which of the following is an example of a heterogeneous mixture?

• Salt water
• Sweet tea
• Bronze
• Oil & vinegar dressing

A ______________ is made up of different kinds of atoms chemically combined.

• element

• compound

• mixture

• molecule

Tags

NGSS.MS-PS1-1

A _____________ contains a variety of elements and compounds that are not chemically combined with each other.

• compound

• element

• molecule

• mixture

The clear liquid which passes through the filter paper is called

• filt
• filter
• filtrate
• filtration

Water and alcohol are easily separated by distillation because of their

• different densities
• different boiling points
• different colours
• different melting points