You can not use the internet or chemistry books.
130833
that's bad...  Methane is CH4, propane is C3H8, and octane is C8H18... the rule to find the number of H in an alkane (single bonded Carbons) is 2N+2 where N is the number of carbon atoms... Methane is 1, ethane is 2, propane 3, butane 4, pentane 5, hexane 6, septane 7, octane 8, nonane 9, decane 10, etc....
259818
Lucky you to have access to the internet, our company doesn't allow it, they restrict everything.
424655
Step away from the computer!
516969
they say that you don't allow emailing.
397240
I am not going to take this test. YOU are.  So you better get off the computer and study.
96797
No christians allowed.
192393
Get off the internet and read a book. Please!
527271
this is not a site for trying to buy or sell things
257391
Do not give your credit card information to anyone on the internet unless you are making a purchase from a reputable site.
409509
you know, this website wasn't meant to help people cheat on their homework assignments. We won't be here for you on the exam date.
420171
Sounds very good and you don't want to do this over the internet.  It could cause too many problems.
375547
You're not allowed to cycle on the motorway.
95634
And it's a good thing you can't because that site is full of viruses. Take your crap and roll before you won't have a computer to connect to.
160606
Just make sure no public school
102058
Look elsewhere on the internet.
198398
If the internet is down, the whole system is down. Meaning there would be no way to use it.
66241
You can not de-orderize NH4, believe it or not, smell is also a chemical property, although you do not want to use it to idenify chemicals.