1) (4 pts) The following data summarize experiments on unknown substances, code

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1) (4 pts) The following data summarize experiments on unknown substances, code named A, B, and C. 100.0 g of A at 75.0 °C was put in thermal contact with 100.0 g of B at 25.0 °C. When the system reached thermal equilibrium (with no heat lost to surroundings), the temperature was 35 °C. 60.0 g of B at 80.0 °C was put in thermal contact with 80.0 g of C at 30.0 °C. When the system reached urroundings), the temper 50.0 g of A at 70.0 °C is put in thermal contact with 30.0 g of C at 20.0 °C. What will be the temperature when the system reaches thermal equilibrium (with no heat lost to surroundings)?

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1) (4 pts) The following data summarize experiments on unknown substances, code

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