NH3 (ammonia) almost works. The only reason why it doesn't is because Route 3 in New Hampshire is US 3, not NH 3.
NH4 exists as a route, but it is a positively charged ion (ammonium), not a full compound.
Are there any that are both routes and compounds?
I'm not doing your chemistry homework for you.
OH2 and OH3
If H20 denotes two molecules of hydrogen and one of oxygen, then I suppose H-201, when pronounced the way most people pronounce it, could be considered a more specific way of naming water even if using the "1" is not conventional chemical notation. (Seriously, I've never met anyone who pronounces road numbers as "two-zero-one," it's always "two-oh-one.")
(Edited to fix a punctuation error)
That would exclude all Arkansas highways since Ar is an element.
There is also CO-2 and you should roll down your windows for plenty of air when driving CO-1...
I-2. Also (I-)H2.
I'm thinking that all those subdivision streets like Springdale, Parkview, Southbrook, and Stonehedge would work. After all, they are compound words. :)
Quote from: vdeane on November 24, 2014, 12:49:31 PM
I-2. Also (I-)H2.
I-H1 actually, since Hydrogen Iodide.
US2 is apparently a thing. There are two of those.
EDIT: NB-1. Was trying to get something like "NH-1B" but it's ruined by the H. NH-1C would work, but it doesn't exist.
EDIT2: ON-Mb 1 would also work, but Ontario just refuses to cooperate and renumber 17. ON-2 certainly works.
Quote from: Mapmikey on November 24, 2014, 09:22:20 AM
There is also CO-2 and you should roll down your windows for plenty of air when driving CO-1...
CO3 and CO5 work too. As would CO4 and CO6 if they were still highways.
N2 in Nebraska.
Quote from: Alps on November 24, 2014, 07:25:28 PM
US2 is apparently a thing.
As is US3. Also apparently. (http://scripts.iucr.org/cgi-bin/paper?sq3008)
I'm sure there are plenty of dairy farms along CA 20. :)
Rh Way at the university of Manitoba.
And here I was thinking this thread would be about prison driveways.
Quote from: robbones on November 24, 2014, 09:04:00 AM
That would exclude all Arkansas highways since Ar is an element.
Argon is a noble gas and doesn't form compounds. :)
(At least not in nature, after reading up on it.)
Quote from: 1 on November 24, 2014, 06:28:56 AM
NH3 (ammonia) almost works. The only reason why it doesn't is because Route 3 in New Hampshire is US 3, not NH 3.
NH4 exists as a route, but it is a positively charged ion (ammonium), not a full compound.
Are there any that are both routes and compounds?
Compound W , Missouri Secondary Route W
I believe SC 203 has not yet been mentioned. Also: http://www.webelements.com/compounds/