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18. When a piece of copper at a temperature of 256.0 °C is added to 255 grams of water at a temperature of 20.0 °C, the final
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a coppes - (lam) - Iwater (gain) q- mepot. m x 0.385 x(24-256) = -(255) (4.184) (24-20) mans Copper - 47077 geram

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