carbonate, halide and sulfate ions

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9 Terms

1
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how does the test for carbonate ions work?

add dilute hcl to the substance, and connect through a tube and run the gas through limewater

2
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what does a positive result look like?

effervescence, and the limewater turns cloudy

3
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how to do the sulfate ion test?

add dilute hcl to acidify the solution, add a couple drops of barium chloride

hcl is first added to remove any carbonate that would also produce a precipitate

4
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what does a positive sulfate ion test look like?

white precipitate in the solution

5
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how to do the halide ion test?

add nitric acid to the substance, and then silver nitrate

6
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what does a positive halide ion test result look like?

precipitate is made

7
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halide ion result for chloride?

white

8
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halide ion result for bromide?

cream

9
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halide ion result for iodide?

yellow