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5.3 Organic Compounds Organic Compounds Organic compounds ALWAYS contain Carbon and ALMOST ALWAYS contain Hydrogen Ex) CH4- Methane, CH3CH2OH- Ethanol There are four ways to write a organic compound Organic Compounds There are four ways to write a organic compounds: Example is Methane Inorganic Compounds 1) 2) 3) Inorganic compounds do NOT contain Carbon with some exceptions: Carbonates- CaCO3, Na2CO3, etc Carbides- Al4C3, SiC Oxides- CO, CO2 Recognizing Organic Compounds Look at the formula Must contain carbon Can’t contain carbonates, carbides, or oxides The H is not written first (so not to confuse with an acid) ex) CH4 not H4C Hydrocarbons Organic compound that contains ONLY carbon and hydrogen Ex) Simple = Methane CH4 Ex) More complicated = Butane CH3CH2CH2CH3 Hydrocarbons Alcohols An alcohol is ONE kind of organic compound that contains C, H, and O Ex) Methanol = CH3OH Practice Pg 251 #1-11 When finished, start the Chapter 5 Review…Be sure to check your answers…Chapter 5 Test will be in two classes