User FreezingFire

84

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7

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122k

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Why is the 2s orbital lower in energy than the 2p orbital when the electrons in 2s are usually farther from the nucleus?

Dec 24 '19 at 6:20 Community♦ 1

61

votes

1

answer

8k

views

Why does F replace the axial bond in PCl5?

molecular-structure halides hybridization valence-bond-theory

Oct 16 at 5:51 Mathew Mahindaratne 26.7k

48

votes

2

answers

23k

views

Why is an S-S bond stronger than an O-O bond?

inorganic-chemistry bond molecules

Jan 14 '17 at 0:31 Community♦ 1

39

votes

3

answers

107k

views

What is the inert pair effect?

inorganic-chemistry quantum-chemistry orbitals periodic-trends relativistic

Mar 1 '18 at 18:48 pentavalentcarbon 7,101

37

votes

3

answers

29k

views

Why is the bond angle H-P-H smaller than H-N-H?

bond molecular-orbital-theory periodic-trends

Jul 3 '17 at 15:35 orthocresol♦ 57k

21

votes

1

answer

2k

views

Why does tin form tin (II) compounds?

periodic-trends oxidation-state

Oct 6 '17 at 1:28 El conejito azul 1

21

votes

2

answers

5k

views

What is the favoured geometry of chlorine trifluoride?

inorganic-chemistry stability vsepr-theory

Oct 10 '17 at 22:36 andselisk♦ 32.2k

17

votes

2

answers

1k

views

Why is WF6 stable whereas CrF6 is unknown?

inorganic-chemistry transition-metals halides hsab

Mar 11 '18 at 18:36 Oscar Lanzi 27.9k

13

votes

1

answer

2k

views

Derivation of formula for the degree of unsaturation

organic-chemistry structural-formula

Aug 7 '17 at 20:00 andselisk♦ 32.2k

13

votes

2

answers

17k

views

The effect of hyperconjugation on the stability of alkenes with MO theory

organic-chemistry molecular-orbital-theory orbitals stability hyperconjugation

Sep 6 '17 at 3:41 Ashutosh Sharma 1

12

votes

3

answers

23k

views

Difference between Epimers and Diastereomers

stereochemistry isomers

Apr 21 '16 at 12:38 Jan 59.6k

12

votes

1

answer

8k

views

Why is ammonia so much more basic than water?

acid-base

Sep 19 '18 at 15:13 Community♦ 1

10

votes

3

answers

55k

views

Mechanism for reaction of Tollens' reagent with aldehydes

organic-chemistry reaction-mechanism redox analytical-chemistry carbonyl-compounds

Sep 7 '17 at 17:04 orthocresol♦ 57k

9

votes

3

answers

13k

views

What does the Clausius Inequality mean in thermodynamics? (entropy)

thermodynamics entropy

Sep 14 '17 at 7:01 krishnarao 1

9

votes

1

answer

12k

views

How to balance more complex redox reactions?

redox oxidation-state

Jan 4 '20 at 6:47 Mathew Mahindaratne 26.7k

9

votes

3

answers

6k

views

“Tie-breaker” rules for IUPAC nomenclature of organic compounds

organic-chemistry nomenclature

Aug 7 '16 at 16:01 SteffX 2,786

9

votes

1

answer

769

views

Primary carbocation in addition of HBr to ethylene?

organic-chemistry reaction-mechanism carbocation

May 19 '17 at 15:05 Berry Holmes 3,756

8

votes

2

answers

1k

views

Why is change in gibbs energy not zero through the gibbs free energy equation?

physical-chemistry thermodynamics

Oct 1 '17 at 12:44 Community♦ 1

7

votes

2

answers

5k

views

Tool that generates electrostatic maps of molecules?

computational-chemistry molecules software

Apr 9 '17 at 4:54 Community♦ 1

5

votes

2

answers

3k

views

Physical Interpretation of Gibbs Free Energy

thermodynamics energy

Mar 25 '16 at 7:47 Community♦ 1

5

votes

2

answers

13k

views

Why is platinum used as a catalyst in fuel cell electrodes (and elsewhere)?

hydrogen catalysis

Apr 17 '16 at 13:46 matt_black 28.1k

3

votes

1

answer

5k

views

Why are anti aromatic compounds unstable?

organic-chemistry aromatic-compounds stability resonance

Apr 6 '16 at 22:13 R.M. 4,607

2

votes

2

answers

245

views

Half cell method of voltage calculation in an electrochemical cell

electrochemistry redox

Feb 15 '18 at 14:21 Gaurang Tandon 8,146

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Why is the 2s orbital lower in energy than the 2p orbital when the electrons in 2s are usually farther from the nucleus?

Why does F replace the axial bond in PCl5?

Why is an S-S bond stronger than an O-O bond?

What is the inert pair effect?

Why is the bond angle H-P-H smaller than H-N-H?

Why does tin form tin (II) compounds?

What is the favoured geometry of chlorine trifluoride?

Why is WF6 stable whereas CrF6 is unknown?

Derivation of formula for the degree of unsaturation

The effect of hyperconjugation on the stability of alkenes with MO theory

Difference between Epimers and Diastereomers

Why is ammonia so much more basic than water?

Mechanism for reaction of Tollens' reagent with aldehydes

What does the Clausius Inequality mean in thermodynamics? (entropy)

How to balance more complex redox reactions?

“Tie-breaker” rules for IUPAC nomenclature of organic compounds

Primary carbocation in addition of HBr to ethylene?

Why is change in gibbs energy not zero through the gibbs free energy equation?

Tool that generates electrostatic maps of molecules?

Physical Interpretation of Gibbs Free Energy

Why is platinum used as a catalyst in fuel cell electrodes (and elsewhere)?

Why are anti aromatic compounds unstable?

Half cell method of voltage calculation in an electrochemical cell