Practice Quiz

MCAS Biology Practice

Category - Chemistry

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Which of the following explains why saltwater is considered a mixture?
  1. It is composed of one element.
  2. It is composed of one compound.
  3. It is composed of two or more substances and has new
    chemical properties.
  4. It is composed of two or more substances that retain their own chemical properties.
Explanation
Answer: D - It is composed of two or more substances that retain their own chemical properties.
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