The first ten alkanes are:ĬH 4 methane (gas) C 6H 14 hexane (liquid)Ĭ 2H 6 ethane (gas) C 7H 16 heptane (liquid)Ĭ 3H 8 propane (gas) C 8H 18 octane (liquid)Ĭ 4H 10 butane (gas) C 9H 20 nonane (liquid)Ĭ 5H 12 pentane (liquid) C 10H 22 decane (liquid)Īlkenes are similar but their molecular structure includes double bonds (examples are ethylene and propylene). Longer carbon chain hydrocarbons are tars and waxes. The physical properties of alkanes change with increasing number of carbon atoms in the molecule, those with one to four being gases, those with five to ten being volatile liquids, those with 11 to 18 being heavier fuel oils and those with 19 to 40 being lubricating oils. It is the first compound in the family known as alkanes. These compounds are composed of carbon and hydrogen, the simplest hydrocarbon being methane, each molecule of which consists of one carbon atom and four hydrogen atoms. The simplest organic compounds are those known as hydrocarbons and these are the main constituents of crude oil/gas. Burning is a simple chemical reaction in which oxygen from the atmosphere reacts rapidly with a substance, producing heat. Most organic chemical compounds will burn.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |