metal hydroxides

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9 Terms

1
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Describe the metal hydroxide test

Add sodium hydroxide to the solution and observe results

2
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Does the metal hydroxide test test cations or anions?

Cations

3
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When aluminium is added to sodium hydroxide it produces a…

White precipitate that will dissolve in excess sodium hydroxide

4
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When calcium is added to sodium hydroxide it produces a…

White precipitate

5
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When magnesium is added to sodium hydroxide it produces a…

White precipitate

6
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When copper is added to sodium hydroxide it produces a…

Blue

7
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When iron ( II ) is added to sodium hydroxide it produces a…

Green precipitate

8
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When iron ( III ) is added to sodium hydroxide it produces a…

Brown precipitate

9
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3 results of this test give white precipitate - how can we find the ion?

Add excess sodium hydroxide to the precipitate solution after the test, if it dissolves it is aluminium

Get a second batch of the original solution and do the flame test. Orange red = calcium