The following information is given for lead at 1 atm: boiling point = 1.740×103 °C Hvap(1.740×103 °C) = 858.2 J/g
melting point = 328.0 °C Hfus(328.0 °C) = 23.00 J/g
specific heat solid = 0.1300 J/g°C
specific heat liquid = 0.1380 J/g°C

A 29.30 g sample of liquid lead at 496.0 °C is poured into a mold and allowed to cool to 26.0 °C. How many kJ of energy are released in this process. Report the answer as a positive number.

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

a polar bond is formed when electrons are shared unevenly between atoms

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