Quiz on Is Matter Around Us Pure?
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Preview questions
1. What is a pure substance?
Contains only one type of particle · Contains multiple types of particles · Is always a solid · Can be easily separated
2. Which of the following is an example of a pure substance?
Air · Salt · Sugar solution · Soil
3. What is a mixture?
A combination of two or more pure substances · A single type of particle · Always a liquid · Cannot be separated
4. Which of the following is a homogeneous mixture?
Sand and salt · Sugar in water · Oil and water · Vegetable salad
5. What is the main characteristic of a heterogeneous mixture?
Uniform composition · Visible different components · Always liquid · Cannot be separated
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