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Explanation: The flame test is used to visually determine the identity of an unknown metal or metalloid ion based on the characteristic color.

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Answer:

The flame test is used to visually determine the identity of an unknown metal or metalloid ion based on the characteristic color the salt turns the flame of a Bunsen burner. The heat of the flame excites the electrons of the metals ions, causing them to emit visible light.Nov 1, 2018

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