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Klaus-Dieter Warzecha

Germany

https://orcid.org/0000-0001-6912-3234

  • Python developer
  • Chemist
profile for Klaus-Dieter Warzecha on Stack Exchange, a network of free, community-driven Q&A sites
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Top Questions
Top Answers
85
Can't save the output of minicom into a file
stackoverflow.com

79
Why does CaCO3 react with HCl, but not with H2SO4?
chemistry.stackexchange.com

68
Ortho-effect in substituted aromatic acids and bases
chemistry.stackexchange.com

63
How do I run a 'sudo' command inside a script?
askubuntu.com

45
How do I extract cyanide from apple seeds?
chemistry.stackexchange.com

41
Does water really 'go bad' after a couple of days?
chemistry.stackexchange.com

34
How can carbon dioxide be converted into carbon and oxygen?
chemistry.stackexchange.com

28
Transpose a matrix in Python
stackoverflow.com

27
What is the role of pH in azo coupling reaction of diazonium with phenol and aniline?
chemistry.stackexchange.com

27
How do you create primary amines from alcohols?
chemistry.stackexchange.com

26
Can metals have a net negative charge
chemistry.stackexchange.com

24
Isonitrile to nitrile conversion
chemistry.stackexchange.com

24
Do chemists refer to water as "dihydrogen monoxide"?
chemistry.stackexchange.com

22
ssh never ask for a password
askubuntu.com

22
Why did the salt on the skin of my turkey react with the aluminum foil it was touching?
chemistry.stackexchange.com

22
How to separate HCl and NaOH from salt and water solution?
chemistry.stackexchange.com

22
What happens to electrons in metal complexes after excitation by visible light?
chemistry.stackexchange.com

21
Do acids really donate a proton?
chemistry.stackexchange.com

21
Products of Reimer–Tiemann reaction of 4-methylphenol
chemistry.stackexchange.com

19
Ozonolysis conditions for benzene
chemistry.stackexchange.com

19
What is the origin of the colour of azo dyes?
chemistry.stackexchange.com

18
Reason for the stronger acidic property of phenol than alcohol
chemistry.stackexchange.com

17
Why does nitric acid not turn yellow everytime?
chemistry.stackexchange.com

17
Why do we insert a numeric multiplier after group positions when naming an isomer?
chemistry.stackexchange.com

16
Why doesn't copper react with hydrochloric acid while the other metals do?
chemistry.stackexchange.com

16
Negative ions and health: pseudo science or something more?
chemistry.stackexchange.com

16
Xenon and the human body
chemistry.stackexchange.com

15
What is going on when pen stops working on a section of paper?
chemistry.stackexchange.com

15
Why only two atoms share an electron and not three?
chemistry.stackexchange.com

15
Why does ZnO turn yellow when it is hot?
chemistry.stackexchange.com

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