Chemistry, 09.12.2020 18:50 asiaemerlle
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19. Substance A has a normal melting point of -25.0 °C, an enthalpy of fusion of 1200 J g'; speci
heat for the solid is 3.00 Jg'c and the liquid is 6.20 Jg'ºc. Determine the heat needed to
change 150 grams of A from a solid at - 40.0 °C to a liquid at +70.0°C. Draw the diagram to
illustrate the process that is occurring. (20 pts)
Intermine if the ion is stable, is the ion paramagnetic
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