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10讲：化学式计算 + 水(上).mp4 | 2026-01-17 18:11:30 | 819.71 MB | |
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11讲：水(下) + 质量守恒(上).mp4 | 2026-01-17 18:11:30 | 846.37 MB | |
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12讲：质量守恒(下).mp4 | 2026-01-17 18:11:30 | 932.9 MB | |
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13讲：化学方程式.mp4 | 2026-01-17 18:11:30 | 844.4 MB | |
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14讲：燃料(上).mp4 | 2026-01-17 18:11:29 | 911.18 MB | |
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15讲：燃料(下).mp4 | 2026-01-17 18:11:29 | 895.65 MB | |
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1_欢哥化学初三暑假讲义.pdf | 2026-01-17 18:11:29 | 4.06 MB | |
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1讲：认识化学.mp4 | 2026-01-17 18:11:29 | 859.09 MB | |
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2讲：空气的成分.mp4 | 2026-01-17 18:11:29 | 838.81 MB | |
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3讲：分子.mp4 | 2026-01-17 18:11:27 | 785.32 MB | |
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4讲：原子.mp4 | 2026-01-17 18:11:27 | 892.95 MB | |
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5讲：离子.mp4 | 2026-01-17 18:11:27 | 871.47 MB | |
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6讲：元素 + 氧气性质(上).mp4 | 2026-01-17 18:11:27 | 939.47 MB | |
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7讲：氧气性质(下) + 燃烧与灭火.mp4 | 2026-01-17 18:11:26 | 862 MB | |
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8讲：氧气制取 + 化学式.mp4 | 2026-01-17 18:11:26 | 912.13 MB | |
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9讲：化合价 + 数字意义.mp4 | 2026-01-17 18:11:26 | 748.9 MB |