The alkanes are oily. They do not dissolve in water or mix with it.
The alkanes with small molecules ( up to four carbon atoms) are gases at room tempereture.
The ones with 417 carbon atoms are liquids. the candle wax have molecules with more than 17 carbon atoms and these are solid at room tempereture.
Chemical Properties of alkanes.:
Burning : All alkanes burn, many common fuels consists mainly of alkanes.
The hydrocarbons burn in air, forming carbon dioxide and water.
Reactions with aqueous acids and alkalis:
alkanes DO NOT react with common laboratory reagents such as acids and alkalis. The hydrocarbons do not react because the C-C and C-H bonds in the molecules are UNREACTIVE.
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