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Introduction to IS
Ureneck-pnhs-intro to I.S.H. vocab
Question | Answer |
---|---|
What is a pure substance? | A pure substance is matter that always has exactly the same composition |
What is an element? | An element is a substance that cannot be broken down into simpler substances. |
What is an atom? | An atom is the smallest particle of an element. |
What is a compound? | A compound is a substance that is made from two or more simpler substances and can be broken down into simpler substances. |
What is a heterogeneous mixture? | A heterogeneous mixture is one that has parts that are noticeably different from one another. |
What is a homogeneous mixture? | A homogeneous mixture has substances that are evenly distributed and difficult to distinguish from one another. |
What is a solution? | A solution is when substances dissolve and form a homogeneous mixture. |
What is a suspension? | A suspension is a heterogeneous mixture that separates into layers over time. |
What is a colloid? | A colloid contains some particles that are intermediate in size betwee nthe small particles in a solution and the larger particles in a suspension. |