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AP Chemistry

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. Anions or cations as needed to produce a compound with non net charge






2. Planck's constant - used to calculate energy w/frequency






3. 760mmHg/Torr






4. Ecell= E°cell -RT/nF x lnQ






5. Color of Li (flame test)






6. negative ion






7. For colligative properties for electrolytes - the # of mols of ions/ mols of solute

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8. Where there are no electrons






9. (organics) four carbons






10. If needed - indicate charge of metal(cation) by...






11. The minimum energy that molecules must possess for collisions to be effective - Ea






12. (organics) triple-bonded compound






13. Ketone suffix






14. Dirrect Method Formula






15. Group 1 - Ammonium - Nitrates - Acetates - Sulfates - Halides






16. H + donor






17. ln[A]=-kt + ln[A]0






18. Kinetic Energy per mol






19. The part of the universe one is focused upon (in thermodynamics)






20. A neutral molecule/ion having a lone e- pair that can be used to form a bond to a metal ion






21. Mol of solute/kg of solvent






22. Color of K (flame test)






23. This MUST be determined experimentally






24. HCl - HBr - HI - HNO3 - HClO4 - H2SO4






25. When two elements form a series of compounds - the ratios of the masses of the second element that combine with 1g of the first element can always be reduced to whole numbers






26. Energy involved in gaining an electron to become a negative ion






27. Higher in energy than the atomic orbitals of which it is composed






28. How to Find an Empirical Formula Given Percentages






29. In ideal gas law problem - when it says "atmospheric" ...






30. Two molecules with identical connectivity but different geometries






31. The weighted average of all the isotopes that an atom can have (in g/mol)






32. Temperature-pressure combination at which solid - liquid - and gas states appear






33. When ____ significant digits - round answer to least decimal place






34. All (though really not all - but for our purposes all) ________ compounds are NOT electrolytes






35. Tools NEEDED for dilution






36. Organic w/ -OH group






37. Carboxylic acid ending






38. 180° - sp






39. Oxoacid solution (such as HSO4-) forms...






40. Change in Energy = ? (in terms of constant pressure; for gasses)






41. Osmotic pressure formula






42. Substances that form OH- when dissolved in water; proton acceptors






43. K






44. Unit of electrical potential; J/C






45. Electron pairs found in the space between the atoms






46. Electron (symbol)






47. A homogeneous mixture with 1 phase






48. Symbol for the heat absorbed or lost molecularly (PER MOLE)






49. Elements which have all electrons paired and relatively unaffected by magnetic fields






50. C=2.9979*10^8 m/s