In an experiment, a student completely reacts 9.54 g copper(II) oxide. Show that the maximum possible mass of CuSO4.5H2O crystals that can be obtained is about 30 g.
[Mr of CuO = 79.5 Mr of CuSO4.5H2O = 249.5]
Give your answer to an appropriate number of significant figures.

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; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;