Q2 MATTER G9 W6

Quarter 2 WORKSHEET NO. 6 MELC: (S9MT-IIh-18) NAME: ____________________________________________ SCORE: _____________________ SECTION: ____________________________________________ DATE SUBMITTED: _____________________ BIG IDEA: Hydrocarbons are organic compounds composed of only carbon and hydrogen atoms. Hydrocarbons may contain single bonds or combination of single, double, and triple bonds. A hydrocarbon that contains only single bonds is saturated. A saturated hydrocarbons has carbon atoms bond to four other atoms. A hydrogen containing at least one double or triple carbon-carbon bond is unsaturated. Alkanes are saturated hydrocarbons that contains only single bonds (C-C) with a general formula of CnH2n+2 where n represents the number of C atoms. The name of alkanes always ends with – ane. Alkene is unsaturated hydrocarbon with a double bond (C=C) which contains two hydrogen atoms less than an alkane counterpart. Alkenes follow the general formula CnH2n and the names always end with -ene. Alkyne is an unsaturated hydrocarbon with a triple bond (C≡C). Each alkyne contains four hydrogen atoms less than a given alkane. The general formula for alkynes is CnH2n-2 and the names always end with -yne. Directions: A. Complete the table below by writing the names & condensed structural formula of the following hydrocarbons: Molecular Formula Names Condensed Structural Formula C2H6 Ethane CH3CH3 C5H12 C9H20 C3H6 C5H10 C8H16 C3H4 C4H6 C5H8 C6H10 B. Complete the table below by writing the molecular formula & condensed structural formula of the following hydrocarbons: Names Molecular Formula Condensed Structural Formula Heptane C7H16 CH3CH2CH2CH2CH2CH2CH3 Octane Nonane Decane Ethene Propene Butene Butyne Pentyne Hexyne Prepared by: Maria Teresa F. Beran Reference: Martin, Purita R., et al. Connecting With Science: Chemistry. Makati City, Philippines: Salesiana Books Don Bosco Press, Inc., 2007.