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introduction to IS
tiemann-pnhs-into to IHS vocab
Question | Answer |
---|---|
What is a pure substance? | A pure substance is a matter that always has exactly the same composition throughout |
What is an element. | An element is a pure substance that can not be broken down into simpler substances. |
What are the smallest parts of an element? | An atom is the smallest part of an element. |
What kind of pure substance is made up of 2 or more elements in a fixed proportion. | A compound |
What is a heterogeneous mixture? | The parts are noticeably different. |
What kind of mixture is evenly distributed and is hard to distinguish one substance from another? | A homogeneous mixture. |
What is a mixture? | A mixture that forms when substances dissolve and form a homogenous mixture. |
What is a suspension? | A heterogeneous mixture that separates into layers over time. |
What is a colloid? | A colloid contains intermediate particles, does not separate into layers, cannot us a filter to separate and scatters light. |