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Are the number of atoms before and after a chemical reaction the same? Why?
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How can the periodic table be used to predict the behavior of elements?
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You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration of 250 mm and a ph of 5. what concentrations of acetic acid and sodium acetate should you use
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Two solids are mixed in a flask and stirred. after a few minutes, the flask becomes cold. which of the following best describes this reaction? a. an exothermic reaction b. a combustion reaction c. an endothermic reaction d. a decomposition reaction
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Are the number of atoms before and after a chemical reaction the same? Why?...
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