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expansion of definition along with etymology
'''Chemistry''' is the study of the interactions of chemical elements and compounds. Along with [[physics]], chemistry is one of the physical sciences. Chemistry be divided into several sub-branches, including:
'''Chemistry''' (from the Egyptian '''kēme''', meaning "earth") is the study of structure, composition, and properties of matter, as well as the interactions of chemical elements and compounds. Along with [[physics]], chemistry is one of the physical sciences. Chemistry is the modern counterpart to [[alchemy]]. Chemistry be divided into several sub-branches, including:
* [[Organic chemistry]]- The study of chemical compounds consisting primarily of [[carbon]] and [[hydrogen]]
* [[Organic chemistry]]- The study of chemical compounds consisting primarily of [[carbon]] and [[hydrogen]]