Skip to main content
Chemistry
Klaus-Dieter Warzecha's user avatar
Klaus-Dieter Warzecha's user avatar
Klaus-Dieter Warzecha's user avatar
Klaus-Dieter Warzecha
  • Member for 12 years, 5 months
  • Last seen more than a month ago
Profile Activity
Stats
44,155
reputation
4.1m
reached
811
answers
0
questions
Communities
View all
About
  • Python developer
  • Chemist
profile for Klaus-Dieter Warzecha on Stack Exchange, a network of free, community-driven Q&A sites
Badges
View all badges
8
gold badges
104
silver badges
166
bronze badges
Top tags
View all tags
1,532
Score
285
Posts
35
Posts %
479
Score
78
Posts
10
Posts %
395
Score
54
Posts
7
Posts %
335
Score
77
Posts
9
Posts %
301
Score
61
Posts
8
Posts %
293
Score
56
Posts
7
Posts %
Top posts
View all questions and answers
answer
79
Why does CaCO3 react with HCl, but not with H2SO4?
Feb 27, 2016
answer
68
Ortho-effect in substituted aromatic acids and bases
Jan 6, 2014
answer
46
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
34
How can carbon dioxide be converted into carbon and oxygen?
Aug 10, 2012
answer
28
What is the role of pH in azo coupling reaction of diazonium with phenol and aniline?
Apr 24, 2015
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
25
Do chemists refer to water as "dihydrogen monoxide"?
Feb 17, 2014
answer
24
Isonitrile to nitrile conversion
Feb 14, 2016
Top Meta posts
6
27
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
Top network posts
View all network posts
86
Can't save the output of minicom into a file
63
How do I run a 'sudo' command inside a script?
22
ssh never ask for a password
16
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?