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Watch Later 2:17

S4_CHEM_CH8_B2_ Bond pair and lone pair of electrons

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S4_CHEM_CH8_B1_ Electron diagram of covalent substances

Watch Later 4:09

S4_CHEM_CH8_A_ Formation of covalent bonds

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S4_化學_CH8_E_式量和相對分子質量

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S4_化學_CH8_D_配位共價鍵的形成

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S4_化學_CH8_C3_共價分子的化學式及其預測

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S4_化學_CH8_C2_單鍵、雙鍵和三鍵

Watch Later 1:27

S4_化學_CH8_C1_結構式和分子式

Watch Later 2:05

S4_化學_CH8_ B2_鍵合電子對和孤電子對

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