Crimson red flame - Lithium ion, Blue-green flame - Copper ion, Yellow flame - Sodium ion, Lilac flame - Potassium ion, Orange-red flame - Calcium ion, Test for oxygen gas - Relights a glowing splint, Test for hydrogen gas - Burns with a 'squeaky pop', Test for chlorine gas - Bleaches damp blue litmus paper, Test for carbon dioxide gas - Turns limewater cloudy, Test for sulfate - Add barium chloride - white precipitate forms, Test for halide - Add silver nitrate, Test for carbonate - Add acid and bubble the gas produced through limewater, Fe(II) ions and NaOH - Green precipitate, Fe(III) ions and NaOH - Brown precipitate, Calcium ions and NaOH - White precipitate (does not dissolve in excess NaOH), Zinc ions and NaOH - White precipitate (dissolves in excess NaOH), Copper(II) ions and NaOH - Blue precipitate,

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