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34 votes

What is resonance, and are resonance structures real?

resonance valence-bond-theory asked May 23 '16 at 17:03
chemistry.stackexchange.com

25 votes

Do vinyl cations adopt a classical or non-classical structure?

organic-chemistry molecular-structure carbocation asked Sep 29 '15 at 11:38
chemistry.stackexchange.com

21 votes

What is Y-aromaticity? Is the trinitromethanide anion aromatic?

organic-chemistry nitro-compounds aromaticity asked Jun 2 '15 at 16:25
chemistry.stackexchange.com

19 votes

Why are the C-C bonds in benzene closer in length to double bonds than single bonds?

organic-chemistry bond aromatic-compounds resonance asked Sep 21 '15 at 17:09
chemistry.stackexchange.com

15 votes

Exocyclic vs. endocyclic double bonds in E1 elimination

organic-chemistry reaction-mechanism stability asked May 21 '15 at 18:19
chemistry.stackexchange.com

15 votes

Why are tertiary carbocations so stable?

organic-chemistry carbocation hyperconjugation asked Jan 19 '16 at 11:50
chemistry.stackexchange.com

11 votes

Purpose of ammine in Tollens' reagent

inorganic-chemistry reaction-mechanism redox coordination-compounds asked Apr 28 '15 at 19:29
chemistry.stackexchange.com

10 votes

Wild camping in the Brecon Beacons

camping wild-camping uk walking national-park asked Jul 5 '15 at 16:24
outdoors.stackexchange.com

9 votes

Bonding in alkali metal complexes

inorganic-chemistry bond coordination-compounds asked May 4 '16 at 16:07
chemistry.stackexchange.com

9 votes

Clemmensen reduction of 1,3 diketones

organic-chemistry reaction synthesis carbonyl-compounds asked Apr 15 '15 at 19:04
chemistry.stackexchange.com

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Top Answers
50
A compound that absorbs all visible light
chemistry.stackexchange.com

39
Can an atom bond with more than 8 other atoms?
chemistry.stackexchange.com

31
What is resonance, and are resonance structures real?
chemistry.stackexchange.com

17
Is the Mid-Atlantic Ridge a ridge or a trench?
earthscience.stackexchange.com

16
If we assume the mega impact hypothesis for the formation of Moon, where on Earth is the impact point?
earthscience.stackexchange.com

16
Why are the masses of atoms less than the sum of their subatomic particles?
chemistry.stackexchange.com

15
Why is tetramethylsilane (TMS) used as an internal standard in NMR spectroscopy?
chemistry.stackexchange.com

14
Why is europium used in Euro bank notes?
chemistry.stackexchange.com

14
Why is tetrafluoromethane non-polar and fluoroform polar?
chemistry.stackexchange.com

14
How is known that the Earth core is solid?
earthscience.stackexchange.com

13
Why there are no sharp corners in nature?
earthscience.stackexchange.com

13
Why is the South Pole colder than the North Pole?
earthscience.stackexchange.com

13
Is biphenyl considered to be aromatic?
chemistry.stackexchange.com

12
Why is cyclopentadiene more stable than its aromatic counterpart cyclopentadienyl anion?
chemistry.stackexchange.com

12
Does sodium form complexes like transition metal ions?
chemistry.stackexchange.com

12
Friedel–Crafts reaction of phenol
chemistry.stackexchange.com

12
What happens if the electronegativity difference is exactly 2.1?
chemistry.stackexchange.com

12
Is oxygen the most abundant element on Earth?
earthscience.stackexchange.com

12
Origin of Azide's Name
chemistry.stackexchange.com

12
What are the distinguishing features of an “artificial seismic wave” (e.g. a large underground explosion)
earthscience.stackexchange.com

11
Why is meta-nitrophenol less acidic than para-nitrophenol?
chemistry.stackexchange.com

10
Is pyrite (FeS₂) an ionic or a covalent compound?
chemistry.stackexchange.com

10
Synthesising Complex Aromatic Compound
chemistry.stackexchange.com

10
Integration of the first order rate equation
chemistry.stackexchange.com

10
Is there a difference between Density and Specific Gravity?
earthscience.stackexchange.com

9
Is it possible for one specific atom in a molecule to have a non-integer oxidation state?
chemistry.stackexchange.com

9
What is GMEC (Global Minimum Energy Conformation)?
chemistry.stackexchange.com

9
Does adsorption violate thermodynamics?
chemistry.stackexchange.com

9
Naming of 2-methylpropane
chemistry.stackexchange.com

8
Claisen condensation
chemistry.stackexchange.com

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