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Question 18 A calorimetry experiment was used to determine that a 50.0-gram piece of metal transferred heat to water in the calorimeter. The change in temperature of the piece of metal was-62.0 C The specific heat of the metal is 0.380 J/(g. C). 0.123 kJ and Dis O1.18 kJ 3.26 kJ Assuming that all heat released by the metal was transferred to the water, determine the amount of heat (in kJ) released by the metal. 0.236 kJ Question 19 DEFM200 Assignm Which of the following does NOT describe an exothermic chemical reaction? O The temperature of the surroundings increases O Heat is released by the reaction The potential energy of the reactants is higher than the potential energy of the products The enthalpy change (AH) is a positive value phonorock.com is sharing your adven 5pt 59th
Question 19 Which of the following does NOT describe an exothermic chemical reaction? O The temperature of the surroundings increases. O Heat is released by the reaction The potential energy of the reactants is higher than the potential energy of the products O The enthalpy change (AH) is a positive value Question 20 itages and Dis... DEFM200 Ass Consider the following thermochemical equation for the combustion of propane C3H8(1)+302(g) → 3C0₂(g) + 4H₂O(g) AH = 2220 kJ Determine the enthalpy change when 0.350 mol CaHg reacts O-400 kJ O-17.6 kJ O-34,300 kJ O-777 kJ -0.634 KJ honolock.com is sharing your schem