guzmangisselle
20.05.2021 •
Chemistry
2 points
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The only sure evidence of a chemical reaction is...
The production of a new material
A color change
The formation of a gas
A change in physical properties
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Ответ:
A citation is a reference to the source of information used in your research. ... An in-text citation is a brief notation within the text of your paper or presentation which refers the reader to a fuller notation, or end-of-paper citation, that provides all necessary details about that source of information
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