Bynjnia
So, if you put matches in a test tube and tie a balloon around it, securing it with tape, and then heat the test tube with a Bunsen burner, the carbon from the wood mixes with oxygen and becomes carbon dioxide. But where does the oxygen come from? We secure the balloon with tape and seal the whole thing airtight. So where does the oxygen come from?
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Loading...I don't know of any possibility. Somehow I have to get rid of them
Hello :), can anyone tell me the water solubility of cobalt(II) nitrate? I can't seem to find anything. Thank you in advance
In chemistry class, we discussed that large, negatively charged molecules in protic solvents are good nucleophiles in nucleophilic substitution because the correspondingly hard charge (due to high charge density) in small nucleophiles is quickly dissolved by the protic solvent and the nucleophile is therefore less able to attack. We also learned that large atoms with…
If, for example, you seek advice from a bank about investment opportunities, the conversation must be documented.
FYI: The €20 billion ITER project in France is under massive criticism. Non-conforming components, as well as cracks and problematic welds in the heat shield, will postpone all milestones originally scheduled for the next few years. The waiting time for the repairs will now be used to more rigorously test the other components. In the…
Just try yourself.
Apply a tealight wax candle and e.g. a cup over it.
Take the cup away after a few minutes.
What did the candle do? Easy, she burned until the oxygen was all. Even though air could have flowed down, it has not flowed down because the air (now with more carbon dioxide) is much warmer than the outside air and also has a larger volume. “She wants out” and doesn’t let fresh air in.
Of course, this does not fit your question of mass conservation, but should be a hint to yourself.
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21% oxygen is already in the closed glass.
If the 21% oxygen has completely connected to the carbon, the oxidation ends. It doesn’t matter how much wood is still in the glass. This remaining wood can no longer be converted.