Classification of matter

Multiple Choice

Which of these is a mixture?

• Laundry Detergent

• Salt (NaCl)

• Oxygen (O)

• Fluorine (Fl)

Multiple Choice

Air is:

• An element

• A compound

• A mixture

• None of these

Multiple Choice

What is an example of a mixture?

• iron
• ice
• soil
• gold

Multiple Choice

Which of the following is classified as a pure substance?

• Lemonade

• Fruit punch

• ketchup

• Helium

Multiple Choice

A mixture that is uniform and well mixed is _____.

• homogeneous
• hetergeneous
• pure substance
• compoud

Multiple Choice

The picture shown here is what type of mixture?

• homogeneous
• hetergeneous
• pure substance
• element

Multiple Choice

True or False: elements AND compounds are pure substances.

• True

• False

Multiple Choice

Dry ice is solid carbon dioxide, or CO2. Dry ice may be used as a cooling agent and contains two oxygen atoms bonded to a carbon atom. Dry ice is a ___________________ .

• pure substance

• mixture

Multiple Choice

Baking soda is the common name for sodium bicarbonate, or NaHCO3. It can be produced through chemical reactions involving carbon dioxide and sodium hydroxide.

• pure substance

• mixture

Multiple Choice

What two types of matter are pure substances?

• elements and solutions

• compounds and mixtures

• elements and compounds

• mixtures and solutions

Multiple Choice

Mixtures that have the same composition throughout are...

• heterogeneous

• homogeneous

• elements

• pure substances

Multiple Choice

Chex mix contains pretzels, rye chips and chex cereal. It is an example of a(n)

• solution/ homogeneous mixture

• heterogeneous mixture

• element

• compound

Multiple Choice

What type of matter is cereal?

• Element
• Compound
• Heterogeneous Mixture
• Homogeneous Mixture

Multiple Choice

H₂O is an example of...

• an atomic number

• an element symbol

• a chemical formula

Multiple Choice

Aluminum foil is an alloy - 98.5% aluminum with the balance primarily from iron and silicon. Aluminum foil is ___________

• Mixture

• Pure substance

Multiple Choice

Water is made up of two hydrogen atoms and one oxygen atom. Water is a compound. Water is

• Mixture

• Pure substance