Classifying Matter

A sample of matter, either a single element or a single compound, that has definite chemical and physical properties.

• pure substance
• element
• nonmetal
• metal

[check all that apply] Pure substances include:

• Elements

• Homogeneous Mixtures

• Compounds

• Heterogeneous Mixtures

[check all that apply] Mixtures are

• chemically combined

• composed of two or more types of matter that can be present in varying amounts

• One or more elements chemically combined

• can be separated by physical changes

Which of these is an element?

• Salt (NaCl)

• Water (H20)

• Oxygen (O)

• Carbon Dioxide (CO2)

Which substance is a compound?

• Salt Water

• Hydrogen (H₂)

• Salt (NaCl)

• Orange Juice

Tags

NGSS.MS-PS1-1

A _________________ mixture is one where the substances are evenly spread throughout.

• heterogeneous

• homogeneous

• pure substance

A ______________ mixture is one that does not have a uniform composition.

• heterogeneous

• homogenous

• pure substance

Chicken noodle soup is

• Homogeneous mixture

• Heterogeneous mixture

Vinegar is

• Homogeneous mixture

• Heterogeneous mixture

A bottle of dishwashing detergent contains a clear, viscous liquid. The label has a long list of ingredients, including water, sodium lauryl sulfate, fragrance, and Blue dye #5.

What can you infer about the material in the bottle from this label and the appearance of the liquid?

• It is a pure substance.

• It is a compound.

• It is a heterogeneous mixture.

• It is a homogeneous mixture.