"ane" saturated, alkane
"ene" unsatruated, double bond, alkene
"yne" unsaturated, triple bond, alkyne
"di" having two of something (diene, diyne)
Practice: methane, ethane, propane, butane, pentane, hexane, etc.
versus: ethene, propene, 1-butene, 2- butene, 1-pentene, etc.
versus: ethyne, propyne, 1-butyne, 2-butyne, etc
versus: cyclopentane, cyclobutane, cyclopentane, cyclopentene, cyclohexane, cyclohexene...
versus: 1,3-butadiene, 1,3-pentadiyne, cyclohexadiene
2006-11-24 06:45:18
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answer #1
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answered by Anonymous
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Carbon compound names follow a system. In that system you name hydrocarbons (compounds of only hydrogen and carbon) by counting the longest continuous chain of carbon atoms and use the appropriate prefix (but- means 4 carbons, prop-means 3 carbons) and then you put the appropriate ending on the name. If the compound has all single bonds between the carbon atoms (making it saturated) it ends in -ane like your "butane". If there are one or more double bonds it ends in -ene like your butadiene (the "di" part tells you there are 2 double bonds) and it is unsaturated. If there are one or more triple bonds it ends in -yne like your propyne and it is also unsaturated.
2006-11-24 06:47:07
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answer #2
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answered by The Old Professor 5
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Saturated means that all the available bonds for carbon are single in nature. That is, no double or triple bonds exist in the molecule.
Whenever you see an -ene anywhere in the name, it indicates a carbon-to-carbon double bond and whenever you see -yne, it indicates a carbon-carbon triple bond. Those are not saturated molecules.
The ending -ane indicates that no double or triple bonds exist in the molecule or at least in that portion of the molecule. Therefore, the substance ending in -ane in your list (butane) is the correct answer.
2006-11-24 06:37:08
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answer #3
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answered by Luha 3
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