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Attraction between a hydrogen atom with a partial positive charge, and another atom with a partial negative charge

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Attraction between oppositely charged regions of closely grouped molecules

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Chemical Compounds: substances formed by dchemical combinations of two or more elements
Chemical Bonds: attractions between atoms that allow for the formation of chemical compounds

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Atoms of the same element that possess different numbers of neutrons

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Atomic Number: number of protons in the nucleus of an atom
Mass Number: number of protons and neutrons in the nucleus of an atom

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Protons: subatomic particle with a positive electric charge
Neutrons: subatomic particle with no electric charge
Electrons: subatomic particle with a negative electric charge

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Weak acids/bases that can react with strong acids/bases to prevent changed in pH. Blood is a good buffer.

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Solution: A type of mixture in which all of the components are evenly distributed.
Suspension: A mixture where materials do not dissolve when placed in water but separate into multiple pieces so small that they do not settle out.  The movement of the water keeps the particles suspended in the mixture.

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The amount of heat needed to raise a system's temperature by one degree celsius

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Cohesion: Attraction between molecules of the same substance
Adhesion: Attraction between molecules of different substances

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A molecule where the charges are unevenly distributed throughout the molecule.  It acts like a magnet with two poles, because the partial positive and negative charges in the molecule can attract each other.

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pH Scale:
-Acids: 0-6
-Bases (Alkaline): 8-14
-Neutral: 7
Acids: A compound that makes a Hydronium ion in a solution
Bases (Alkaline): A compound that makes Hydroxide ions in a solution