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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. Volume of gas @STP






2. Positive enthalpy - heat flows into system






3. Mols A/ total mols - XA






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






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






6. Dirrect Method Formula






7. Does the same as equilibrium expression - except it uses initial concentrations






8. The driving force for a spontaneous is an increase in entropy of the universe






9. Where oxidation occurs






10. Substance in which something is dissolved in a solution (higher [ ])






11. C2H3O2¹?






12. Phase change from gas to solid






13. Freezing point depression formula






14. Kinetic Energy per mol






15. Temperature-pressure point after which gas can no longer form liquid






16. Arrhenius equation






17. S²?






18. Substances above the critical temperature and pressure in which the pressure is so high that density and flowing ability of a "gas" resembles that of a liquid






19. An element with several different forms - each with different properties (i.e. graphite & diamond)






20. Larger molecules which have higher mass and therefore electron density have stronger...






21. The reactant that is being oxidized - brings about reduction






22. AX5E






23. Compound in which there is a bond between two non-metals; when naming them you use the numerical prefixes (may NOT be reduced i.e. S2F4 may not become SF2)






24. Transition metals with ammonia - hydroxide - cyanide or thiocyanate form...






25. Different form of same element






26. These orbitals are diagonal






27. Isotope






28. Color of Ba (flame test)






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






30. AX5






31. Similar to atomic orbitals - except between molecules






32. Molarity (M)






33. Amine prefix






34. Kinetic Energy is proportional to ______






35. AX4E






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






37. The chemical formed when an acid donates a proton






38. In a titration - the point where moles of acid are equal to moles of base (just before the indicator changes color)






39. Substance being dissolved in a solution (lower [ ])






40. ?Hsoln=?H1+?H2+?H3+...






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






42. I=moles of particles/moles of solute dissolved

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43. Colors of Reaction when (MnO4 -) --> (Mn2+)






44. NH4¹?






45. If Q>Ksp






46. Organic reaction in which water breaks apart a molecule (splitting into two hydroxides)






47. Kinetic Energy of an individual particle formula






48. A solution that resists a change in pH - contains both a weak acid and its conjugate base






49. Ending for alcohols






50. Expresses how the concentrations depend on time