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Portable Network Graphic  |  1991-11-09  |  2.9 KB  |  512x342  |  4-bit (4 colors)
   ocr: 20 Click on the best answer 19 17 HybridorbitalTound in molecule of 18 methane or CH4 - - S spl 11 Fsp2 has This 4 moiecule identical 12 Fsp bonds 15 13 (allow 4 seconds to reset after wrong answers)