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Cards In This Set
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Chemistry
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The branch of science that deals with the identification of substances of which matter is composed and how they interact, combine and change
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Element
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A substance that cannot be separated or broken down into simpler substances by chemical means; all atoms of an element have the same atomic number
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Atom
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The smallest unit of an element that maintains the chemical properties of that element
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Compound
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A substance made up of atoms of two or more different elements joined by chemical bonds
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Molecule
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A group of atoms that are held together by chemical forces; a molecule is the smallest unit of matter that can exist by itself and retain all of a substances chemical properties
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Chemical Formula
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A set of chemical symbols showing the elements present in a compound and their relative proportions
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Pure Substances
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A sample of matter, either a single element or a single compound, that has definite chemical and physical properties
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Mixture
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A combination of two or more substances that are not chemically combined
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Miscible
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Forming a homogenous mixture when added together
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Immiscible
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Not forming a homogenous mixture when added together (ex. water and oil)
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Pressure
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The amount of force exerted per unit area of a surface
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Viscosity
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The resistance of a gas or liquid to flow
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Chemical Change
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A change that occurs when one or more substances change into entirely new substances with different properties
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Physical Change
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A change of matter from one form to another without a change in chemical properties
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Energy
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The capacity to do work
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