A 63 g piece of magnesium absorbs 6689 J of heat. The final temperature is 663°C. What was the initial temperature? The specific heat of magnesium is 1.023 J/g degrees Celsius.

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.