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How much heat is released by lowering the temperature of 825 grams of molten (liquid) lead at 800K to solid lead at 295K? Lead melts at 600.61K.
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Choose all the answers that apply. as ocean depth increases, temperature decreases temperature increases pressure increases pressure decreases salinity increases density increases
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Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.
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Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.
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