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introduction to IS

tiemann-pnhs-into to IHS vocab

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.
Created by: alexat21