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chapter two

section one

Matter Anything that has mass and takes up space
Substance A single kind of matter that is pure
Physical property A characteristic of pure substance that can be observed without changing into another
Chemical property A characteristic of a pure substance that describes the ability to change into different
Element Pure substance that can not be broken down by a chemical or physical means
Atom The basic particle from witch all elements are made
Chemical bond A force of attraction between two atoms
Molecules Groups of 2 or more atoms held together by a chemical bond
Compound A pure substance made of 2 or more elements chemically combined in a set ratio
Chemical formula Shows the elements in the compound and ratio of atoms
Mixture Made of 2 or more substances that are together in the same place but not chemically combined
Heterogeneous mixture You can see the different parts of the mixture
Homogenous mixture So evenly mixed you can't see the different parts
Solution A well-mixed mixture containing a solvent and at least one solute that has the same properties throughout (example of a homogenous mixture)
Created by: sciencestudy3