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Pentane has the chemical formula C₅H₁₂. This follows the pattern of alkane hydrocarbons, where the general formula is CₙH₂ₙ₊₂. For comparison:
- Methane: CH₄
- Ethane: C₂H₆
- Propane: C₃H₈
- Butane: C₄H₁₀
- Pentane: C₅H₁₂
- Hexane: C₆H₁₄
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