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Introduction to ES
jax-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; an element or compound. |
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 a heterogenous mixture? | A heterogenous mixture is a type of mixture in which the parts of the mixture are noticeably different from one another. |
Whats is a homogeneous mixture? | A homogeneous mixture is a type of mixture in the substances are so evenly distributed that it is difficult to distinguish one substance in the mixture from another |
What is a solution? | A solution is a mixture that forms when substances dissolve and form a homogeneous mixture. |
What is suspension? | Suspension is a heterogenous mixture that seperates into layers over time. |
What is colloid? | A colloid is a mixture that contains some particles that are intermediate in size between the small particles in a solution and the larger particles in a suspension |