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Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o
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How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next
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Using the periodic table, complete the following. element: hydrogen symbol: hâ‚‚ molecular weight: g mass of one mole: g/mol
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Which radioisotope is used to date fossils? a. oxygen-16 b. carbon-14 c. uranium-238 d. carbon-12
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Fluorine is more reactive than chlorine....
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