Please help really soon
(I'm confused) :|

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.

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.

Why do lunar and solar eclipse not happen every month