How does the initial mass of a star relate to its surface temperature and luminosity? Explain.

Mass determines how hot the stellar core gets in response to gravitational contraction, and since the rate of nuclear burning is very sensitive to temperature, a star's mass determines the energy production rate (luminosity), and whether/when gravitational contraction can lead to explosive release of energy for massive.

Explanation:

if you mean hydrogen and oxygen then water is the product

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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