A sample of aluminum (c = 0.900 J/gºC) is heated from 20.8°C to 38.7 °C using 3,750 ) of energy. What is the mass of the aluminum sample?

What are the major types of a chemical compound

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.

Which molecules are more strongly attracted to one another -c3h8o molecules that make up liquid rubbing alcohol or ch4 molecules that make up methane gas