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Published byDebra Jordan Modified over 9 years ago
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Chemistry
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Chemistry is the science concerned with the composition, structure, and properties of matter.
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Atoms are the basic units in chemicals.
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Atoms are made of subatomic particles. protons (+) neutrons (0) electrons (-)
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An element is a pure substance made up of only one kind of atom. All matter is made up of elements.
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Reading the Periodic Table
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Molecules atoms combine to form molecules, which can be pure elements or combinations of two or more elements. molecules are held together by chemical bonds.
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NaCl
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NaCl in Solution
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Covalent Bonds formed when atoms share electrons sharing can be unequal
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Chemical Reactions reactants products example: CO 2 + H 2 O C 6 H 12 O 6 + O 2
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Acids and Bases
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