Per9_exercise - Period 9 Exercise Answers E.1 In chemical...

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Period 9 Exercise Answers E.1 In chemical reactions, the amount of mass that might be converted into energy is very small. In nuclear reactions this is not the case. This is because the binding energy in chemical bonds a) is much larger than the binding energy in nuclear bonds. b) is almost the same as the binding energy in nuclear bonds, except for light nuclei that fuse. c) is much smaller than the binding energy in nuclear bonds. d) is about the same as in nuclear bonds, but many more chemical reactions take place. e) depends on the catalyst present, while nuclear bonds are the same for all nuclei. The binding energy in nuclear bonds is much greater than the binding energy in chemical bonds. E.1 = c
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E.2 Protons are held in an atomic nucleus by the strong nuclear force. The attraction of the nuclear force is opposed by which of the following? a) the repulsive nuclear force between neutrons b) the attractive nuclear force between electrons c) the mutual repulsion between like positive charges d) random molecular collisions e) the gravitational force E.2 = c
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E.3
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