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AP Chemistry 2

Subjects : science, ap, chemistry
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. How does the melting point of a mixture compare to the MP of a pure substance?






2. Ca - Sr - Ba






3. lead iodide






4. dichromate (soln + most solids)






5. primary colors






6. What shape is water?






7. What is the hybridization for a given atom with four single bonds? one double and two single bonds? two double bonds? one triple and one single bond? two single bonds and two lone pairs? three single bonds and one lone pair?






8. silver iodide






9. What gases usually come off during the 'electrolysis of water?' At the anode? At the cathode?






10. Esters smell like _______ and amines smell like _______ and are ______.






11. When AB(s) and AC(s) are formed by adding A? ions to a mixture of 0.10M B? & 0.10M C? ions - which will precipitate first?






12. cyanide






13. The oxidation # for acid base reactions...






14. mercury (I) ion






15. Ions are not ______.






16. Alkanes are _________ and react by _________






17. What do ions and electrons travel through in a voltaic/electrolytic cell?






18. In equilibrium calculations for weak acids/bases - when should you ignore 'x' with respect to initial concentration of acid or base

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19. If a weak acid is diluted more - what happens to its % dissociation value?






20. What do the 'a' and 'b' in Van Der Waal's equation allow for?






21. One mole of electrons carries 96500Coulombs - what is this quantity called?

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22. If Q > Ksp - then system shifts _______ and ppt ______






23. What changes Keq?






24. Flame tests for certain metal ions (simple emission spectra) gives which colors for potassium - sodium - lithium - copper - barium






25. What is the test for hydrogen?






26. Is a graduated cylinder or beaker more accurate?






27. Neutralization is an ________ reaction.






28. Does the electrolyte with the lowest Ksp value have to be the least soluble? Why?






29. BaSO4






30. What apparatus do you use to pour liquids?






31. What are hybrid orbitals used for?






32. What range of indicator would you use for the following titrations. a) s.a. + s.b. b) w.a. + s.b. c) w.b. + s.a.






33. A geometric (or cis-trans) isomer exists due to.....






34. How does half life change for zero-th order - first order - and second order processes?






35. What does a short - sharp melting point indicate?






36. What is the formula for percent yield?






37. What is the relative solubility of CO2 - HCl - NH3 - NO2 - O2 - and SO2?






38. nitrates






39. What are two allotropes of carbon?






40. How does the KE and PE of ice at 0°C compare to the KE and PE of water at 0°C?






41. What things should you remember to do when collecting gas over water?






42. What are the bond angles and hybridization for a carbon with 4 sigma bonds? one double bond? two double bonds? one triple bond?






43. For a weak acid solution in water - Ka = 10?6 what is Kb for its conjugate base?






44. chromate






45. Do anions flow to the cathode or anode?






46. What is Ksp in terms of molar solubility ('s') for an electrolyte AB3 or A3B?






47. If an electrolyte has an endothermic heat of solution - what will happen to its Ksp value when the temperature is raised? What about exothermic?






48. What process do you use to separate two liquids with different boiling points?






49. Is the freezing of ice endothermic or exothermic?






50. Generally - which oxy acid is strongest?