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Intro To IS

walter-pnhs-intro to I.H.S vocab.

What is a pure substance? A pure substance is matter that always has the same composition throughout.
What is an element? An element is a pure substance that can't be broken down into into simpler substances and contain 1 type of atom.
What is an atom? An atom is the smallest part of an element.
What is a compound? A compound is a pure substance that is made of 2 or more elements in a fixed proportion, can be broken ddoun into simpler substances, and it's compound proplertys differ from the elements they are made up of.
What is a heterogeneous mixture? A heterogeneous mixture is a mixture whare parts are noticably different from eachother.
What is a Homogeneous mixture? A homogeneous mixture is a mixture whare parts are evenly distributed and it is difficult to distinguish substances from one another.
What is a solution? A solution is a homogeneous mixture that does not seporate into layers, cannot be filterd, has very small particals, and light can pass through without being scatterd in all directions.
What is a suspention? A suspention is a heterogeneous mixture that can seporate into layers, can be trapped by a filter, can scatter light in all directions, and has large particals.
What are collid mixtures? Collid mixtures contain intermediate particals, do not seporate into layers, are not seporated by a filter, and scatters light.
Created by: sandra.w