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The answer for the zinc question was 0.17 they clearly said AVERAGE absorbency, meaning that they had dissolved each of the tablets separately, measured their absorbency and averaged it.

These are the answers from having discussed with all the top people in my year. 1. A 2. B 3. A 4. C 5. C 6. D 7. D 8. D 9. D 10. B 11. A 12. A 13. C 14. B 15. B

15 is B. We all agree that electrons will move to the left in that instance. Since this is a P-type semiconductor the MAIN conduction (which is what was asked for) will come from electrons filling the holes in the VALENCE band of the boron atoms. The holes are not in the conduction band, they...

unless your doing philosophy in which case solipsism = win, although solipsism = lonely is also true. Anyway, it's often easy to answer the question without defining an imaginative journey in your essay. In fact I've always been told not to start with definitions. And as for the moving from...