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- 1. Multiple Choice
[check all that apply] Pure substances include:
Elements
Homogeneous Mixtures
Compounds
Heterogeneous Mixtures
- 2. Multiple Choice
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.
- 3. Multiple Choice
[check all that apply] An compound 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.
- 4. Multiple Choice
The properties of a compound are different from the elements that make them up.
True
False
- 5. Multiple Choice
Oxygen is a
Element
Compound
- 6. Multiple Choice
Water (H2O) is a
Element
Compound
- 7. Multiple Choice
[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
- 8. Multiple Choice
Salt (NaCl) is
Mixture
Compound
- 9. Multiple Choice
Saltwater is
Mixture
Compound
- 10. Multiple Choice
Heterogeneous mixture is
A mixture with a composition that varies from point to point
A mixture with a uniform composition and appears visually the same throughout
- 11. Multiple Choice
Homogeneous mixture is
A mixture with a composition that varies from point to point
A mixture with a uniform composition and appears visually the same throughout
- 12. Multiple Choice
Chicken noodle soup is
Homogeneous mixture
Heterogeneous mixture
- 13. Multiple Choice
Vinegar is
Homogeneous mixture
Heterogeneous mixture
- 14. Multiple Choice
In a mixture, which of the following is always true?
It is a liquid.
It contains dissolved solids.
It is composed of two or more pure substances.
It cannot be separated into individual components.
- 15. Multiple Choice
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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