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| substances that cannot be taken down into other substances |
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| are substances that contain 2 or more elements in a fixed ratio |
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| smallest uint of matter that still retains the properties of an element |
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| number of protons, determines which element it is |
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| sum of the number of protons and neutrons |
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| is a amount of the amount of the matter in a object |
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| alternate mass froms of an element |
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| decays, giving off particles and energy |
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| determine how an atom behaves when it encounters other atoms |
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| are formed between oppositely charge ions |
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| forms when two atoms share one or more pairs of outer-shell electrons |
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| atoms held together by covalent bonds |
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| one with opposite charges an opposite ends |
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| the polarity of water results in weak elcetrical attractions between neighboring water molecules |
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| such changes in the chemical composition of matter |
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| water molecules stick together as a result of hydrogen bonding |
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| is the amount of energy associated with the movement of the atoms and molecules in a body of matter |
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Definition
measures the intensity of heat
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| is a liquid consisting of a homogenous mixture of two or more substances |
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| when water is the solvent |
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Definition
| a chemical compound that releases H+ to solution |
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Term
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Definition
| a compound that accepts H+ and removes it from solution |
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Term
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Definition
| are substances that resist PH change |
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