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unit 1.2


atom The smallest unit of element that maintains the properties of that element
element a substance that cannot be separated or broken down into a simpler substances by chemical means
compound a substance made up of atoms of two or more different elements that are joined by a chemical bond
mixture a combination of two or more substances that are not chemically combined
pure substances a sample of matter either a single element or single compound that has definite chemical and and physical properties
heterogenous describes something that does not have a uniform structure or composition throughout
homogeneous describes something that has a uniform structure or composition throughout
solid the state of matter in which the volume and shape of a substances are fixed
gas a form of matter that does not have a definite shape or volume
freezing the change of state form a liquid to a solid
melting the change of state from solid to liquid
evaporation the changes of state from a liquid to a gas usually occurs at the surface of liquid over a wide range if temperatures
boiling the change of state from a liquid to gas that ocurrs at specific temperatures
condensation the change of state from a solid to a liquid
sublimation the change of state from a solid directly to a gas
deposition the change fo state form gas directly to a solid
liquid the state of matter that has a definite volume but not a definite shape
Created by: Juliannaramos