Chemistry, 11.05.2021 20:40 haylie1456
If I add 5.05 kJ of heat to a 50.0 g metal block sitting at 25.0°C to increase its temperature to 455°C. What is the specific heat capacity of the metal?
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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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An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o
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If I add 5.05 kJ of heat to a 50.0 g metal block sitting at 25.0°C to increase its
temperature to 4...
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