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Introduction to ES
Geick-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 those simpler substances. |
What is the difference between a heterogeneous mixture and a homogeneous mixture? | The difference between a heterogeneous mixture and a homogeneous is that in a heterogeneous mixture, the parts of it are noticeably different from one another while in a homogeneous mixture, the different substances are are hard to distinguish. |
What is a solution, suspension, and colloid? | A solution is a mixture that forms when substances dissolve, a suspension is a mixture that separates into layers over time, and a colloid is particles that are intermediate in size. |