Double bond
01
双键, 键双
a type of chemical bond between two atoms involving the sharing of two pairs of electrons, resulting in a stronger and more stable connection than a single bond
例子
Ethylene ( C₂H₄ ) contains a double bond between two carbon atoms, allowing it to participate in polymerization reactions.
乙烯（C₂H₄）含有两个碳原子之间的双键，使其能够参与聚合反应。
Unsaturated fats have double bonds between carbon atoms in their hydrocarbon chains, contributing to their liquid state at room temperature.
不饱和脂肪在其碳氢链中的碳原子间有双键，这有助于它们在室温下保持液态。
