Three: pentane, 2-methylbutane (isopentane), and 2,2-dimethylpropane (neopentane).
There are 3:
Pentane, methylbutane and dimethylpropane
The IUPAC name for pentane is pentane. Pentane is a saturated chain of five carbon (C) atoms with the formula C5H12. Specifically, using the IUPAC name, pentane refers to the n-pentane isomer.
pentane has five carbons
Butane has higher melting and boiling points.
Pentane hasn't a biological activity.
Methane, ethane and propane don't have isomers (confirmers are possible) , butanes are two n-butane and iso-butane, pentanes are three n-pentane, iso-pentane and neo-pentane.
The IUPAC name for pentane is pentane. Pentane is a saturated chain of five carbon (C) atoms with the formula C5H12. Specifically, using the IUPAC name, pentane refers to the n-pentane isomer.
pentane has five carbons
If you mean what is an isomer then it is a compound with the same chemical formula but with a different structure
pentane insolube
Butane has higher melting and boiling points.
Isomer is the term used for chemical compounds having the same molecular formula, in physics the term isomer is meaningless although the term Isotope is used.
I think these are right. I don't know too much but this is what I'm thinking........... 1.) Pentane 1a.) C-C-C-C-C 2.) 2-methyl butane 2a.) C-C-C-C --------C 3.) 2,2-methyl propane -------C 3.) C-C-C -------C Ignore the "-"'s. That's the only way I could figure out how to line the C's up lol. I hope that's right and helps ;)
Pentane is an alkane; its formula is C5H12.
Pentane is the name in the IUPAC system
trans isomers
Pentane hasn't a biological activity.
Methane, ethane and propane don't have isomers (confirmers are possible) , butanes are two n-butane and iso-butane, pentanes are three n-pentane, iso-pentane and neo-pentane.