The empirical formula of a group of compounds is CHCl. The active ingredient in permethrin, a powerful insecticide, is a member of this group. The molar mass of the compound is 290.8 g/mol. How many atoms of carbon does a molecule of the compound contain

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.