Đề thi icho 2018 kèm đáp án

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Đề thi icho 2018 kèm đáp án

19th - 29ih July 2018 Bratislava, SLOVAKIA Prague, CZECH REPUBLIC www.50icho.euPREPARATORY PROBLEMS: THEORETICALSOLUTIONS50th IChO2018International Ch

Đề thi icho 2018 kèm đáp án hemistry Olympiad SLOVAKIA & CZECH REPUBLICBACK TO WHERE IT ALL BEGANUPDATED 12™ JUNE 2018INTERNATIONAL CHEMISTRY OLYMPIAD I SLOVAKIA & CZECH REPUBLIC

. 2018 ------------Table of ContentsProblem 1. Synthesis of hydrogen cyanide...............................................2Problem 2. Thermochemistry Đề thi icho 2018 kèm đáp án

of rocket fuels.............................................3Problem 3. HIV protease................................................................6

Đề thi icho 2018 kèm đáp án

Problem 4. Enantioselective hydrogenation..............................................8Problem 5. Ultrafast reactions................................

19th - 29ih July 2018 Bratislava, SLOVAKIA Prague, CZECH REPUBLIC www.50icho.euPREPARATORY PROBLEMS: THEORETICALSOLUTIONS50th IChO2018International Ch

Đề thi icho 2018 kèm đáp án hemical cell......................................14Problem 8. Fuel cells.................................................................16Problem 9.

Acid-base equilibria in blood..............................................18Problem 10. Ion exchange capacity of a cation exchange resin............ Đề thi icho 2018 kèm đáp án

..............20Problem 11. Weak and strong cation exchange resin.....................................21Problem 12. Uranyl extraction.................

Đề thi icho 2018 kèm đáp án

........................................22Problem 13. Determination of active chlorine in commercial products...................24Problem 14. Chemical

19th - 29ih July 2018 Bratislava, SLOVAKIA Prague, CZECH REPUBLIC www.50icho.euPREPARATORY PROBLEMS: THEORETICALSOLUTIONS50th IChO2018International Ch

Đề thi icho 2018 kèm đáp án ....27Problem 16. Iron chemistry............................................................29Problem 17. Cyanido- and fluorido-complexes of manganese

..............................34Problem 18. The fox and the stork.....................................................37Problem 19. Structures in the Đề thi icho 2018 kèm đáp án

solid state.............................................39Problem 20. Cyclobutanes..............................................................41Prob

Đề thi icho 2018 kèm đáp án

lem 21. Fluorinated radiotracers..................................................42Problem 22. Where is lithium?.....................................

19th - 29ih July 2018 Bratislava, SLOVAKIA Prague, CZECH REPUBLIC www.50icho.euPREPARATORY PROBLEMS: THEORETICALSOLUTIONS50th IChO2018International Ch

Đề thi icho 2018 kèm đáp án ..............................................46Problem 25. All roads lead to caprolactam.............................................48Problem 26. Ri

ng opening polymerizations (ROP)........................................50Problem 27. Zoniporide...................................................... Đề thi icho 2018 kèm đáp án

..........52Problem 28. Nucleic acids.............................................................54

19th - 29ih July 2018 Bratislava, SLOVAKIA Prague, CZECH REPUBLIC www.50icho.euPREPARATORY PROBLEMS: THEORETICALSOLUTIONS50th IChO2018International Ch