1 . Match the following concepts or items on the lefthand side with the best tting conceptf' statement on the righthand side, [please see the example a]). {2|} points}. a) rational number 1. latitude b) protons are in the... c) cation d)axb=bxa .elements e) Probability of getting a . March 20, 2011 "4\" when rolling one die f) natural numbers . g) ' ' . polyethylene h) prime number . proton i) gravity 0.22222 ...... j] table salt 10. pure SiCI'2 k) Parallels 11. kg 1] amorphous solid 12. f5 _ m} up; up, down quarks 13. positively charged In} with... 14. exponential function u) with... o) divisible by 3 15. laws of real numbers _ o) with... p) CH4 18.?1 p) with... q) 5] unit of mass r) equinox 19. easily deciphered code 5) with... t) 10 X the basic unit 20. methane _t] with... _ u) link encryption 21. nucleus of an atom u) with