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DavePhD
  • Member for 8 years, 2 months
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47 votes

What is the pH of ice?

43 votes

Is iron in the brown ring compound in a +1 oxidation state?

35 votes
Accepted

Can 100% covalent bonds exist?

34 votes
Accepted

Can we really see the bonds?

28 votes

Why does whipped cream use nitrous oxide instead of nitrogen gas?

25 votes
Accepted

Why is the definition of the mole as it is?

25 votes
Accepted

What is more acidic: D3O+ in D2O or H3O+ in H2O and why?

24 votes
Accepted

Is there a difference between NaCl or table salt (processed) and salt from the Himalayas?

21 votes

Can drinking a lot of water be fatal?

21 votes
Accepted

What is the pKa of the hydronium, or oxonium, ion (H3O+)?

21 votes

What's the strongest known organic acid?

20 votes
Accepted

PV=nRT approximation on other planets?

19 votes

Why is methanol toxic?

19 votes
Accepted

Oxidation state of the sulfur atoms in the thiosulfate Ion

18 votes

Do electrons have some volume, area or shape?

17 votes

Realistic chemical spill accident in high school chemistry class

17 votes
Accepted

What is the usage of orbitals more complex than f orbitals?

17 votes
Accepted

Why is NaCl3 possible?

16 votes

How do I visualize an atom?

16 votes
Accepted

Does the hydrogen ion actually exist?

16 votes

Why is water "the universal" solvent?

16 votes
Accepted

Is hydrogen bonding generally defined to include only three period two elements?

16 votes
Accepted

What is the Structure of FeSO₄ • NO?

16 votes
Accepted

Why does coordinate covalent bond form?

16 votes
Accepted

How to RAISE the melting point of water?

16 votes

Salts that are more hydrophilic than NaCl

15 votes
Accepted

Is cis dipole moment is always greater than trans dipole moment?

15 votes

What is active mass?

15 votes

Why isn't water an ionic compound?

15 votes
Accepted

Is there a simple way to separate deuterium oxide from tap water?

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