When sodium compounds are heated in a bunsen burner flame, they emit light at a wavelength of 5890 Å (1 Å = 1.0×10−10 m). If 1.0×10−4 mol of sodium atoms each emit a photon of this wavelength, how many kilojoules of energy are emitted?

Ibelieve it's celsius. hope this .

The water cycle increase the water content in the earth atmosphere

Answer    "a salt" would be the best answerexplanationsalts can be defined as ionic compounds that are neither acids nor bases. nacl is an example of a salt, and its ionic.an enzyme is an organic compound which is covalently bonded, not ionically bonded.acids are generally held together by covalent bondsan element does not need any bonds to exist

It is a body of knowledge gained  using  inquiry and experimentation