Apiece of metal weighing 15.442 g is placed in 49.7 ml of ethyl alcohol (d = 798 g/ml) in a graduated cylinder. the alcohol level increases to 51.8 ml. the best value for the density of the metal from these data is:

Volume of ethyl alcohol increase is equal to volume of metal so 51.8 - 49.7 = 2.1 ml. Density = mass / volume so density = 15.442 / 2.1 = 7.35  g/ml

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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answer carbon and three oxygen atoms;