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Emma.Voorhies CHE

QuestionAnswer
Physical Changes Alters the form or appearance of a substance without changing the identity of the substance
Chemical Change Occurs when substances become new substances with different properties. Chemical bonds are broken and reformed.
Chemical Bonds The force that holds atoms together in compounds. Valence electrons (found in groups)
Chemical Reaction Process when elements and compounds combine in new ways to form new substances.
Created by: Emma.Voorhies
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