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10 questions
[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
Oxygen is a
Element
Compound
Water (H2O) is a
Element
Compound
[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
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.
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