Tubes A and B contain lime water and sodium hydroxide solution. What qualitative reactions must
| July 31, 2021 | education
Tubes A and B contain lime water and sodium hydroxide solution. What qualitative reactions must be carried out to determine the contents of each of the tubes?
1) We first skip carbon dioxide, the test tube with alkali becomes cloudy.
2) We drop litmus solution into another test tube, it turns blue.
Answer. Carbon dioxide and litmus.
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