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| Science of the structure and interactions of matter |
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| Anything that occupies space and has mass |
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| Amount of matter in any living organism or nonliving thing |
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| Building blocks of matter |
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| Oxygen, Carbon, Hydrogen, Nitrogen; Consitute about 96% of body's mass; considered "main elements" |
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| Two basic parts of an atom: |
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| Nuclues and one or more electrons |
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| Located in nuclues; positively charged |
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| Located in the nucleus; neutrally charged (uncharged) |
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| Located outside the nucleus; negatively charged |
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| Number of protons in the nucleus |
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| When an atom either gives up or gains electrons (showed by + or - symbols) |
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| When two or more atoms share and electron |
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| A substance that can be broken down into two or more different elements |
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| Force of attraction between ions of opposite charges |
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| An ionic compound that breaks apart into cations and anions when dissolved in water |
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| When atoms combine and neither loses or gains electrons |
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| Occurs when new bonds form and/or old bonds break between atoms |
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| Energy of matter in motion |
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| When two or more atoms, ions, or molecules combine to form new and larger molecules. |
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| The synthesis reactions that occur in your body |
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| Decomposition reactions that occur in your body |
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| Consist of both synthesis and decomposition reactions |
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| Sum of all chemical changes in the body |
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usually lack carbon, structurally simple, held together by ionic or covalent bonds; Include water, acids, bases and many salts
CO2 and HCO3- are exceptions |
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| Always contain carbon, usually hydrogen, always have covalent bonds; Carbohydrates, lipids, proteins, nucleic acids, and ATP. |
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| Most abundant, important inorganic compound in all living organisms. Makes up 55-60% of body mass. |
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| A liqued or gas in which some other material has been dissolved. |
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| Material that is dissolved in a solvent |
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| solvent + solute = solution |
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| building blocks of carbohydrates; simple sugar |
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| two monosacchrides joined by a covalent bond; simple surgars |
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| Large, complex carbohydrates that contain tens or hundreds of monosacchrides |
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| hydrophobic; contain carbon, hydrogen, oxygen |
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