Chemistry
Klaus-Dieter Warzecha
  • Member for 9 years, 6 months
  • Last seen more than a week ago
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  • Python developer
  • Chemist
profile for Klaus-Dieter Warzecha on Stack Exchange, a network of free, community-driven Q&A sites
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79
Why does CaCO3 react with HCl, but not with H2SO4?
Feb 27 '16
63
Ortho-effect in substituted aromatic acids and bases
Jan 6 '14
45
How do I extract cyanide from apple seeds?
Feb 2 '15
39
Does water really 'go bad' after a couple of days?
Mar 23 '14
32
How can carbon dioxide be converted into carbon and oxygen?
Aug 10 '12
27
How do you create primary amines from alcohols?
Apr 2 '14
26
Can metals have a net negative charge
Mar 16 '15
24
Isonitrile to nitrile conversion
Feb 14 '16
22
Do chemists refer to water as "dihydrogen monoxide"?
Feb 17 '14
21
Do acids really donate a proton?
Mar 11 '17
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Should we delete and blacklist [reaction]?
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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
55
How do I run a 'sudo' command inside a script?
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ssh never ask for a password
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Change password on root user and user account
13
Auto start Openvpn with one .ovpn file

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