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Chemical Sequence (Posted on 2021-04-26) Difficulty: 1 of 5
What comes next in the list: methane, ammonia, water, _____, _____?

See The Solution Submitted by Brian Smith    
Rating: 4.0000 (2 votes)

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Some Thoughts I'm not sure if this is it, but ... | Comment 1 of 5
Symbol  Bond angle   # bonds   boiling point (Celsius)

(1) CH4:  109.5 degrees  4 bonds   -161.55
(2) NH3:  107.8 degrees  3 bonds   -33.34
(3) H2O:  104.5 degrees  2 bonds   +100 

So, I'm guessing it is the number of bonds.
The next two could be
(4) any molecule with 2 atoms and a single bond
(5) any molecule consisting of a single atom

(4) Hydrogen (H2)
(5) Helium (He)

  Posted by Larry on 2021-04-26 09:20:34
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