User Nicolau Saker Neto

214 votes

Accepted

Why can we smell copper?

answered Jan 20, 2014 at 11:20

157 votes

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Why doesn't H₄O²⁺ exist?

answered Apr 4, 2019 at 3:12

56 votes

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The last element's atomic number

answered Jan 26, 2014 at 13:41

54 votes

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Why don't everyday things burn?

answered Jul 17, 2016 at 11:47

51 votes

Why do we call O2 oxygen?

answered Nov 25, 2018 at 11:10

47 votes

Are there non-transparent gases?

answered Jun 9, 2015 at 15:47

46 votes

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The reason behind the steep rise in pH in the acid base titration curve

answered Jan 26, 2014 at 13:02

45 votes

Why is chemistry unpredictable?

answered Oct 20, 2020 at 2:14

35 votes

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Do atoms form either a positive or a negative charge, but not both?

answered Jul 17, 2015 at 16:57

34 votes

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Why do all radioactive decay series terminate at lead?

answered Dec 29, 2015 at 22:04

33 votes

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What is the strongest oxidising agent?

answered Oct 4, 2018 at 13:03

33 votes

What is a word for "atom or molecule"?

answered Dec 13, 2019 at 18:05

32 votes

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Does IUPAC nomenclature have the ability to name all organic compounds?

answered Apr 22, 2017 at 6:58

32 votes

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How come uranium's relative atomic mass is 238.03 when it only contains isotopes with a mass number of 238 or less?

answered May 28, 2015 at 23:16

29 votes

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What are some good examples of rate equations for a math class?

answered Mar 16, 2014 at 21:14

29 votes

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Is it possible to melt diamonds into a liquid?

answered Nov 6, 2013 at 17:53

28 votes

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Why does the 3rd electron shell start filling up with scandium?

answered Feb 10, 2014 at 22:44

28 votes

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Does hydrogen really have seven isotopes?

answered Feb 25, 2015 at 16:56

28 votes

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Is it possible to speed up radioactive decay?

answered Nov 7, 2017 at 21:52

27 votes

Why doesn't hydroxide associate with water analogously to proton forming hydronium?

answered Oct 8, 2022 at 1:01

25 votes

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Shape of the P1/2 Orbital

answered Sep 4, 2016 at 8:10

25 votes

How much CO2 could you remove from the atmosphere with 2 trillion USD?

answered Jul 27, 2015 at 18:23

24 votes

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What is the correct value of the Avogadro constant? And how was it derived?

answered Jun 4, 2015 at 13:32

23 votes

Melting and boiling points of transition elements

answered Apr 27, 2013 at 4:44

23 votes

Why is the minus sign (-) not allowed in reaction equations?

answered Dec 12, 2015 at 22:35

23 votes

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Is there a least reactive chemical species?

answered Dec 18, 2016 at 10:26

23 votes

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On heating in the Earth's atmosphere, can magnesium react with nitrogen to form magnesium nitride?

answered Jun 13, 2020 at 8:44

22 votes

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Can carbon dioxide be reduced to carbon monoxide and oxygen to produce energy?

answered Sep 3, 2020 at 3:56

22 votes

Why does graphite have a high melting point even though its intermolecular forces are weak?

answered Jan 16, 2019 at 8:49

22 votes

A compound that absorbs all visible light

answered Jul 15, 2015 at 11:47

Stack Exchange Network

229 Answers

Why can we smell copper?

Why doesn't H₄O²⁺ exist?

The last element's atomic number

Why don't everyday things burn?

Why do we call O2 oxygen?

Are there non-transparent gases?

The reason behind the steep rise in pH in the acid base titration curve

Why is chemistry unpredictable?

Do atoms form either a positive or a negative charge, but not both?

Why do all radioactive decay series terminate at lead?

What is the strongest oxidising agent?

What is a word for "atom or molecule"?

Does IUPAC nomenclature have the ability to name all organic compounds?

How come uranium's relative atomic mass is 238.03 when it only contains isotopes with a mass number of 238 or less?

What are some good examples of rate equations for a math class?

Is it possible to melt diamonds into a liquid?

Why does the 3rd electron shell start filling up with scandium?

Does hydrogen really have seven isotopes?

Is it possible to speed up radioactive decay?

Why doesn't hydroxide associate with water analogously to proton forming hydronium?

Shape of the P1/2 Orbital

How much CO2 could you remove from the atmosphere with 2 trillion USD?

What is the correct value of the Avogadro constant? And how was it derived?

Melting and boiling points of transition elements

Why is the minus sign (-) not allowed in reaction equations?

Is there a least reactive chemical species?

On heating in the Earth's atmosphere, can magnesium react with nitrogen to form magnesium nitride?

Can carbon dioxide be reduced to carbon monoxide and oxygen to produce energy?

Why does graphite have a high melting point even though its intermolecular forces are weak?

A compound that absorbs all visible light