Chemistry and Matter Review

How are mixtures and compounds different?

• Only a compound has 2 or more elements.

• Only a compound is chemically combined.

• Only a mixture is physically mixed together. (pizza, salad, etc.)

• Only a mixture can be homogeneous or heterogeneous.

How are mixtures and compounds similar?

• They are both a combination of 2 or more substances.

• They can be homogeneous or heterogeneous.

• They are only made from pure substances.

• They are both made of matter.

What is an element?

• a group of different types of atoms

• A single type of atom

A mixture is

• a group of the same type of molecule

• A single atom

• A group of different types of molecules

• an element

What element is Co?

• Copper

• Cobalt

• Calcium

• Cromium

Sugar is an example of a

• mixture

• pure substance

Tags

NGSS.MS-PS1-1

How many atoms are in 4NaCl?

• 8

• 2

• 6

Tags

NGSS.MS-PS1-1

How many H₂O molecules can you make from 8H + 4O?

• 8

• 2

• 4

• 1

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Lemonade is an example of a _____

• mixture

• pure substance

How many elements are in C₈H₁₀N₄O₂?

• 1

• 18

• 24

• 4

Tags

NGSS.MS-PS1-1