testing for anions
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1
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what do you add to test for anions
dilute nitric acid followed by a few drops of silver nitrate solution
2
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why do we use nitric acid
to get rid of carbonate ions
3
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what does a chloride do
a white precipitate of silver chloride
4
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what does a bromide do
a cream precipitate of silver bromide
5
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what does an iodide do
a yellow precipitate of silver iodide
6
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what do you do to test for carbonates
add some dilute nitric acid. if there is fizzing, carbonate ions are present and co2 will be produced. check by bubbling through limewater
7
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how do you test for sulfate ions
first add hydrochloric acid. second add barium chloride solution. if sulfate ions are present a white precipitate of barium sulfate will form