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Portable Network Graphic  |  1991-08-01  |  4KB  |  512x342  |  4-bit (4 colors)
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OCR: 20 28 Which sketch best represents the following 18 17 Calcium Hydride Calcium (family II), makes 2 bonds. These Polar 2 areas of repulsion move as far away as possible, 180º. Linear, single bonds. 27 Nonpolar 22A. 28.8 24.11 Double 25.12 Bonds 15 Click on the correct answer. 13 14 (allow 4 seconds to reset after wrong answers)