3
Calculate the amount of heat produced when 52.4 g of methane, CH4,
burns in an excess of air, according to the following equation. CH4(g) +
202(g) — CO2(g) + 2H20(1) AH = -890.2 kJ. a) Is the reaction endothermic
or exothermic? b) Is the energy of the reactants greater than or less than
the products? c) How much heat in kJ is produced in the reaction when
52.4 g of methane is burned?
Answers: 2
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Strong conductivity of plasma allows it to act and react as and
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Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base
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Summarize possible ways in which phases of matter could combine to form a solution.
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3
Calculate the amount of heat produced when 52.4 g of methane, CH4,
burns in an excess of ai...
burns in an excess of ai...
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