Asheet of aluminum foil that has a thickness of 0.100 micrometers has dimensions of 24.0 cm x 15.0 cm. how many milligrams would this sample weigh if the density of aluminum is 2.70 g/cm^3

Word equation for k(s) +h2o(l) yield koh (aq) + h2

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal

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.