What is an example in which a scientists might calculate the mean of a data set

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.

What is the measured amount of a product obtained from a chemical reaction?

Determine type of reaction & predict the product c3h12+o2 =