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DrMoishe Pippik's user avatar
DrMoishe Pippik's user avatar
DrMoishe Pippik's user avatar
DrMoishe Pippik
  • Member for 9 years, 5 months
  • Last seen this week
59 votes
Accepted

Why is fluorine a gas, but lithium isn't?

32 votes
Accepted

Raw green onions are spicy, but heated green onions are sweet. Why is this?

29 votes

Effect of drinking ultra-pure water

26 votes

Why isn't 'chemically-strengthened glass' made with potassium carbonate to begin with?

25 votes
Accepted

How would I measure the Carbon Dioxide content in Coca Cola over a period of time?

25 votes

How toxic chemically is plutonium (Pu), neglecting the radioactive damage?

22 votes

Has anyone sysnthesized perfluorocubane (AKA octafluorocubane)?

18 votes

Can a battery be built where several electrodes share the same electrolyte?

17 votes
Accepted

Strong exothermic mixing of two 'safe' liquids

17 votes
Accepted

Colour of platinum

17 votes

Ripping apart plastic: is this a chemical or physical change?

16 votes

Why do we call O2 oxygen?

16 votes

Would it be safe to melt plastic bottle caps and remold them into a form?

15 votes
Accepted

Are molecules exchanged between a solid and liquid in equlibrium?

15 votes

Improving Elephant Toothpaste experiment

15 votes
Accepted

Can reactions produce microwave or radio wave radiation?

15 votes

Is "Sulfuric acid... makes a poor electrolyte... very little of it will dissociate into ions" really true? What does that actually mean?

14 votes

Placed in equivalent freezers, would a liter of water or a liter of lava turn from liquid to solid first? (question from a 6 year old)

14 votes
Accepted

Why does hot oil fry things, but hot water does not?

14 votes
Accepted

Has a non-carbon-based form of life been discovered since 2010?

14 votes

How can brass still be made even though the crystal structures of zinc and copper are not the same?

14 votes
Accepted

If a crystal has alternating layers of different atoms, will it display different properties depending on which layer is exposed?

14 votes

How can I identify the material of this mystery gear?

13 votes

Are there colorful metals besides gold and copper?

13 votes

Is it true that all of the physical laws and mathematics needed to describe chemistry are known?

13 votes
Accepted

Strange batch of potassium nitrate with lower than expected melting point

12 votes

Why are there only 7 periods in the periodic table?

12 votes

How to stop goggles from fogging?

12 votes
Accepted

Does the side of filter paper matter?

12 votes

Why don't room temperature superconductors exist?

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