If your percent yield of copper was greater than 100%, what are three plausible errors you may have made

What is the [oh-] in a solution with a poh of 3.90

Temperature and kinetic energy are proportional. a) adirectly b) directly c) indirectly

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.