WorksheetsMixtures vs. Pure Substances
Total questions: 15
Worksheet time: 15mins
Dr. Pepper:
Pure Substance or Mixture?
Pure Substance
Mixture
Sand:
Pure Substance or Mixture?
Pure Substance
Mixture
Salt:
Pure Substance or Mixture?
Pure Substance
Mixture
What term belongs in #3?
(a)
Homogeneous mixture
A mixture with a composition that varies from point to point
A mixture with a uniform composition and appears visually the same throughout
Sand
Mixture
Compound
Chicken noodle soup
Homogeneous mixture
Heterogeneous mixture
Heterogeneous mixture
A mixture with a composition that varies from point to point
A mixture with a uniform composition and appears visually the same throughout
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.
Saltwater is
Mixture
Compound
Which of the following is a characteristic of a pure substance?
It can be separated into components by physical means.
It has a fixed composition.
It is always a mixture of different elements.
It has a variable composition.
What is the main difference between a mixture and a pure substance?
Mixtures have a fixed composition, while pure substances do not.
Pure substances can be separated by physical means, while mixtures cannot.
Mixtures can be separated into components by physical means, while pure substances cannot.
Pure substances are always homogeneous, while mixtures are always heterogeneous.
Which of the following is an example of a homogeneous mixture?
Sand and water
Oil and water
Salt dissolved in water
Iron filings and sulfur powder
In an experiment, a student mixes iron filings and sulfur powder. What type of mixture is formed?
Homogeneous mixture
Pure substance
Heterogeneous mixture
Compound
Which of the following statements is true about pure substances?
They can be elements or compounds.
They can be separated into simpler substances by physical means.
They always exist in a gaseous state.
They are always mixtures of different elements.
