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John
  • Member for 6 years, 7 months
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10 votes
1 answer
14k views

What is melting? Which bonds do we break to melt something?

6 votes
3 answers
18k views

Why is ice less dense than water?

5 votes
1 answer
3k views

What is the proton NMR spectrum of p-methoxyphenol?

4 votes
1 answer
123 views

Do electric charges increase activation barriers?

4 votes
0 answers
391 views

Why do isomeric complexes often have different colors? [duplicate]

3 votes
2 answers
2k views

Why does this compound have two benzene rings? [duplicate]

2 votes
2 answers
380 views

Why is polymer B more dense than polymer A?

2 votes
1 answer
20k views

Why is bromine produced at the anode when aqueous sodium bromide undergoes electrolysis?

2 votes
1 answer
2k views

How does cross-linking between polymer chains increase the melting point of the polymer?

1 vote
2 answers
6k views

Why does branching decrease density and melting point?

1 vote
1 answer
2k views

What does "percentage by mass" mean in the context of a compound dissolved in a solution?

1 vote
0 answers
780 views

Why can the anion NO3- behave as a L-type ligand while BF3 can not? [closed]

1 vote
0 answers
659 views

Are esters and amides soluble in cold acids/bases? [closed]

1 vote
1 answer
886 views

If A reacts with B (aq), does that mean it is soluble in it?

0 votes
1 answer
8k views

Which of these functional groups is soluble in aqueous HCl and/or NaOH?

0 votes
0 answers
165 views

How does Le Chatelier's principle apply to a fuel tank full of hydrogen?

-1 votes
1 answer
871 views

Why must NaOH be in excess if we wish to measure the effect acid strength has on the enthalpy of neutralisation?