Testing ions and graphs
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| How do you test for Cu2+ ions? | Add NaOH -> blue precipitate (Cu(OH2)
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| How do you test for Fe2+ ions? | Add NaOH -> green precipitate (Fe(OH2)
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| How do you test for Fe3+ ions? | Add NaOH -> brown precipitate (Fe(OH3)
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| How do you test for K+ ions? | Flame test -> lilac
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| How do you test for Na+ ions? | Flame test -> orange/yellow
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| How do you test for Li+ ions? | Flame test -> crimson
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| How do you test for Ca2+ ions? | Flame test -> brick-red
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| How do you test for NH4+ ions? | Add NaOH, warm and test with red litmus -> turns blue
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| How do you test for CO3 2- ions? | Add nitric acid -> bubbles of CO2
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| How do you test for Cl- ions? | Add nitric acid and silver nitrate -> white precipitate (AgCl)
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| How do you test for Br- ions? | Add nitric acid and silver nitrate -> cream precipitate (AgBr)
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| How do you test for l- ions? | Add nitric acid and silver nitrate -> yellow precipitate (AgI)
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| How do you test for SO4 2- ions? | Add barium nitrate -> white precipitate (BaSO4)
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
mthorpe1
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