While alkenes can burn, they often undergo incomplete combustion , resulting in a smoky flame due to unburnt carbon particles. Key Concepts for Exam Success
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| Section | Typical Content | |---------|-----------------| | | Simple to complex redox and combustion reactions | | B. Mole‑Concept Calculations | Conversions between mass, moles, and particles | | C. Limiting Reactant & Theoretical Yield | Identifying limiting reagents, calculating excess, yields | | D. Percent Composition & Empirical Formulas | Determining composition from mass data | | E. Gas‑Law Problems | Using PV=nRT and related gas equations | | F. Solution Concentrations | Molarity, molality, dilution calculations | While alkenes can burn, they often undergo incomplete
Alkenes are a homologous series of . Unlike alkanes, which only have single bonds, alkenes contain at least one carbon-carbon double bond (C=C) . General Formula: CnH2ncap C sub n cap H sub 2 n end-sub Gas‑Law Problems | Using PV=nRT and related gas
: The worksheet typically requires identifying the first four alkenes: ethene ( C2H4cap C sub 2 cap H sub 4 ), propene ( C3H6cap C sub 3 cap H sub 6 ), butene ( C4H8cap C sub 4 cap H sub 8 ), and pentene ( C5H10cap C sub 5 cap H sub 10 Chemical Reactions of Alkenes
When reviewing your , look for these specific errors: