Pure Substances vs Mixtures

[check all that apply] Pure substances include:

• Elements

• Homogeneous Mixtures

• Compounds

• Heterogeneous Mixtures

An element is?

• Chemically combined

• Pure substances that can be broken down

• Pure substances that cannot be broken down into simpler substances

• One or more elements chemically combined.

The properties of a compound are different from the elements that make them up.

• True

• False

Tags

NGSS.MS-PS1-1

Oxygen is a

• Element

• Compound

Tags

NGSS.MS-PS1-1

Water (H₂O) is a

• Element

• Compound

Tags

NGSS.MS-PS1-1

[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

Salt (NaCl) is

• Mixture

• Compound

Tags

NGSS.MS-PS1-1

Saltwater is

• Mixture

• Compound

Chicken noodle soup 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.