Calculate DH and DStot when two copper blocks, each of mass 10.0 kg, one at 100°C and the other at 0°C, are placed in contact in an isolated container. The specific heat capacity of copper is 0.385 J K−1 g−1 and may be assumed constant over the temperature range involved.

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Q: pls show the the isomers of butane-2,3-diol.  Which pairs are enantiomers? diastereomers? mesomers?...

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