When sodium chloride is strongly heated in a flame, the flame takes on the yellow color associated with the emission spectrum of sodium atoms. the reaction that occurs in the gaseous state is na^+(g) + cl^- (g) > na (g) + cl (g) calculate ? h for this reaction. (kj/mol)
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Ответ:
Ответ:
Chlorine is located in 7A group of the third period.
[Ne]3s²3p⁵
2+5=7