Tests for cations, anions, and flame tests to identity cations

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10 Terms

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Calcium

White precipitate, insoluble in excess

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Copper (II)

Light blue precipitate, insoluble in excess

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Iron(III)

Red-brown precipitate, insoluble in excess

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Iron(II)

Green precipitate, insoluble in excess, but the surface of the precipitate turns brown on standing

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Zinc

White precipitate, soluble in excess giving a colourless solution

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Lithium flame colour

Red

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Sodium flame colour

Yellow

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Potassium flame colour

Lilac

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Copper flame colour

Blue green

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Test for carbonate

  • Add dilute acid

  • Bubble the gas releases through limewater