What is chemistry?
The "branch of science concerned with the properties, composition, and structure o substances and the changes they undergo when they combine or react under specific conditions."
The Columbia Encyclopedia, "Chemistry," accessed May 8, 2020, http://ezproxy.ccu.edu/login?url=https://search.credoreference.com/xontent/entry/columency/chemistry/0?institutionId=4352
Ionic and Covalent Bonding
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