13. Hydrocarbons
Hydrocarbons are organic compounds composed exclusively of carbon and hydrogen atoms, serving as foundational elements in organic chemistry. They can be classified into saturated hydrocarbons (alkanes) and unsaturated hydrocarbons (alkenes and alkynes). The chapter discusses their nomenclature, physical and chemical properties, uses, and environmental impacts, highlighting their significance in energy production and potential environmental hazards.
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What we have learnt
- Hydrocarbons consist solely of carbon and hydrogen atoms.
- They can be saturated or unsaturated based on the type of bonds present.
- The nomenclature of hydrocarbons is based on the number of carbon atoms and bond types.
Key Concepts
- -- Saturated Hydrocarbons (Alkanes)
- Compounds containing only single bonds between carbon atoms, exemplified by methane and ethane.
- -- Unsaturated Hydrocarbons
- Compounds that contain one or more double or triple bonds, such as alkenes and alkynes.
- -- Nomenclature
- A systematic method to name hydrocarbons based on carbon count and bond type, such as -ane for alkanes and -ene for alkenes.
- -- Combustion
- A chemical reaction where hydrocarbons react with oxygen to produce carbon dioxide and water, releasing energy.
- -- Environmental Impact
- The adverse effects of hydrocarbons, including pollution from incomplete combustion and oil spills impacting marine ecosystems.
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