Chemistry
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Klaus-Dieter Warzecha
  • Member for 10 years, 1 month
  • Last seen more than a week ago
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profile for Klaus-Dieter Warzecha on Stack Exchange, a network of free, community-driven Q&A sites
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All Questions Answers
Score Newest
answer
78
Why does CaCO3 react with HCl, but not with H2SO4?
Feb 27, 2016
answer
66
Ortho-effect in substituted aromatic acids and bases
Jan 6, 2014
answer
45
How do I extract cyanide from apple seeds?
Feb 2, 2015
answer
39
Does water really 'go bad' after a couple of days?
Mar 23, 2014
answer
32
How can carbon dioxide be converted into carbon and oxygen?
Aug 10, 2012
answer
27
How do you create primary amines from alcohols?
Apr 2, 2014
answer
26
Can metals have a net negative charge
Mar 16, 2015
answer
26
What is the role of pH in azo coupling reaction of diazonium with phenol and aniline?
Apr 24, 2015
answer
24
Do chemists refer to water as "dihydrogen monoxide"?
Feb 17, 2014
answer
24
Isonitrile to nitrile conversion
Feb 14, 2016
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33
Should we delete and blacklist [reaction]?
24
The Angry Homework Vampire
20
Where's ron and Klaus Warzecha for the election?
20
Can we please burninate the organic tag?
17
Questions about safety on an industrial scale
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Can't save the output of minicom into a file
57
How do I run a 'sudo' command inside a script?
21
ssh never ask for a password
14
Change password on root user and user account
14
What are the AREF, IOREF, and the unlabeled pin next to IOREF on the Uno R3?

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