A hot, just-minted copper coin is placed in 101 g of water to cool. The water temperature changes by 8.39 degrees Celsius  and the temperature of the coin changes by 68.0 degrees Celsius. What is the mass of the coin?

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Q: 1. If in air at 60 a body cools from 90 to 80 in 10 minutes, find its temperature 20 minutes later.

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Q: What is the mass of a piece of iron that releases 134.60 joules of heat as it cools from 93.13…

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Q: A piece of metal with a specific heat of 0.57 J g-1°C-1 at 1188 °C is dunked into a beaker…

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Q: A sample of water pf unkown mass undergoes a temperature change from 86.52 degrees celsius to 30.15…

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Q: A sheet of gold metal that has a mass of 100.0g and has a temperature of 18.0 degrees C is placed…

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Q: 250 grams of water, initially -15 C, is added to coke (240 grams) at 35 C, if all the ice melts,…

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Q: When 417 J of heat are added to 35.0 g of vinegar at 27 degrees Celcius, the temperature increases…

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A: Since the density of coffee is 1.0 g/ml.Mass of 180ml coffee is 180 g.If the final Temperature is…

Q: If a 10.5 gram sample of iron requires 784.35J of energy to raise the sample to a final temperature…

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Q: A 45.9 g sample of a metal is heated to 95.2 degrees C and then placed in a calorimeter containing…

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Q: What is the mass of a piece of iron that releases 239.18 joules of heat as it cools from 93.13…

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Q: How much heat, in units of Joules, is needed to warm 647.2 g of copper from 40 °C to 82 °C? The…

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Q: A 0.82 g corn chip burns and heats 50 g of water from 22.1 degrees C to 27.8 degrees * C . If 0.23 g…

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Q: A 4.70 g nugget of pure gold absorbed 279 J of heat. The initial temperature was 29.0*c. What was…

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Q: An adult eats food whose nutritional energy totals approximately 2100 Cal per day. The adult burns…

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Q: What piece of metal will you heat (choose its number)? What piece of metal will you cool (choose its…

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Q: If a glass of water and a lake have the same temperature, which has more thermal energy?

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Q: How many kilocalories of heat (energy) would it take to heat 141.0 g of water from 23.0 °C to 85.0…

A: Given How many kilocalories of heat would it takes to heat 141.0g of water from 23.0 °C to 85.0 °C?

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