If you had added excess hydrochloric acid to the sodium carbonate and then evaporated the solution, you would have detected an irritating gas. What do you think its name and formula would be? O HCI(g), hydrogen chloride gas O HCI(g), hydrochloric acid gas O H2lg), hydrogen gas O Cl2lg), chlorine gas

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UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.