rio1228p7c7vj
21.09.2020 •
Chemistry
In the substance, iron (II) sulfate, which element is in the greatest percentage by mass?
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Ответ:
To distinguish between nitrous oxide and oxygen. Ignite the candle and lower it to the bottom of the test tube into the N2O(g). It will burn much longer than in air and will burn with an enlarged flame. Repeat the candle experiment with O2(g) you will observe dazzling combustion of a candle in the presence of oxygen.