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    | Chemistry 
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    |  | Study of the
    composition, structure and properties of 
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    |  | matter and the
    changes (including energy) that matter 
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    |  | undergoes. 
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    |  |  
    | Major
    Areas of Chemistry 
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    |  | Analytical 
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    |  | Biological
    (Biochemistry) 
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    |  | Inorganic 
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    |  | Organic 
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    |  | Physical. 
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    | Chemistry: the ‘central’ science 
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