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Introduction to E.S
johnson-pnhs-intro to I.S.H vocab
Question | Answer |
---|---|
what is a pure substance? | matter that always has the exact same composition |
what is an element? | a substance that can not be broken down into simpler substances |
what is an atom? | the smallest particle of a substance |
what is a compound? | a substance that is made from two or more other substances |
what is a heterogeneous mixture? | the parts of a mixture that are noticeably different from another |
what is a homogeneous mixture? | a mixture that is difficult to distinguish from another |
what is a solution? | when substances dissolve and form a homogeneous mixture |
what is a suspension? | the heterogeneous mixture that separates into layers over time |
what is a colloid? | contains some particles that are intermediate in size between small particles in a solution and the larger particles in the suspension |