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11 Level 5-6: Describe a calorimeter as a system for heat absorption or heat release. Enter your answer
12 Level 5-6: How many joules of heat are needed to raise the temperature of 21.0 g of aluminum from 20°C to 70°C, if the specific heat of aluminum is 0.90 J/g°C?* Enter your answer
13 Level 5-6: Compute the heat of reaction for the formation of 150-g of ammonium bromide from ammonia and hydrogen bromide. The molar mass of NH4Br is 97.94 g/mol. * NH3 + HBr – > NH4Br AH = -188.32 kJ Enter your answer