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Chemistry Core
Science exams1
Question | Answer |
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Chemistry | is the science of matter. |
Atom | is the basic unit of chemistry. It consists of a positively charged core |
Element | is related to that of chemical substance. A chemical element is specifically a substance which is composed of a single type of atom. |
Compound | is a substance with a particular ratio of atoms of particular chemical elements which determines its composition, and a particular organization which determines chemical properties. |
Substance | is a kind of matter with a definite composition and set of properties |