¿Qué masa de sulfato de cobre, CuSO4 (MM= 160 g/mol), se necesita para preparar 2 L de una solución 0,25 M?

The crust of earth may a- continets and ocean floors. b-continents only. c-layers of sedimentary rocks and continents. d-all of the above

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.