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Introduction to ES
Brown-pnhs-intro to I.S.H vocab
Question | Answer |
---|---|
What is a pure substance? | Matterb that always has exactly the same composition. EX. table salt |
What is an element? | A substance that cannot be broken down into smaller substances. EX. Helium |
What is an atom? | The smallest particle of an element. |
What is a compound? | A substance that is made from two or more simpler substances and can be broken down into more simpler substances. EX. Sillicon Dioxide |
What is a solution? | When substances disslove and form a homogenous mixture, the mixture that forms is a solution. |
What is suspension? | A heterogeneous mixture that separates into layers over time. |
What is colloid? | Contains some particles that are intermediate in size between the small partials and large particles in a suspension. |
What is a heterogeneous mixture? | The parts of the mixture are noticably different from one anthoer. |
What is a homogeneous? | The parts of a mixture are evenly distributed throughout the substance. |