Test your basic knowledge |

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. SO3²?






2. Instrument used to measure the pressure of a not-atmospheric gas (open or closed system)






3. Universal IMF for nonpolar molecules






4. x can be ignored when % ionization is <5%






5. Anything occupying space and with mass






6. Entropy in the universe is always...






7. ?T=k*m(solute)






8. The energy required to raise 1 g of substance 1 degree C






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






10. A single substance that may be an acid or a base (i.e. water)






11. Theoretical yield-experimental yield/theoretical yieldx100






12. (organics) double-bonded compound






13. The mixing of native atomic orbitals to form special orbitals for bonding






14. SI unit of energy; Kg*m^2/s^2






15. Atomic #






16. Carbonates - Hydroxides - Oxides - Phosphates - Sulfides






17. Significant Digits of counted things






18. The transfer of energy between two objects due to temperature difference






19. Symbol for Enthalpy






20. 0°C and 1 atm






21. The intermolecular attractions resulting from the constant motion of electrons and the creation of instantaneous dipoles






22. A method of investigation involving observation and theory to test scientific hypotheses






23. Like dissolves...






24. F¹?






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






26. Measure of the average kinetic energy of all the particles in a substance






27. 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






28. Ptotal=P1+P2+P3+...

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29. negative ion






30. Thickness






31. I¹?






32. Change without heat transfer between the system and its surroundings






33. % yield






34. 2+ charge






35. Point at which vapor pressure=air pressure above






36. How to Find an Empirical Formula Given Grams






37. Force that holds atoms together






38. The entropy of a pure perfectly formed crystal @0K is 0






39. 1 sigma bond






40. When n=6 ->2 - color=






41. (A) - C/s






42. q H2O = ?






43. (organics) single-bonded compound






44. Passage of gas through tiny orifice






45. (organics) one carbon






46. To find activation energy use the...






47. Carbon & hydrogen compounds






48. Osmotic pressure=MRT






49. As protons are added to the nucleus - electrons are similarly added






50. We cannot simultaneously determine an atom's exact path or location