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. Color of Sr (flame test)






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






3. Variable for spin of electron (+.5 or -.5)






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






5. Universal IMF for nonpolar molecules






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






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






8. Mixing of gases






9. If a change is imposed on a system at equilibrium - the position of the equilibrium will shift in a direction that tends to reduce that change

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10. Change that occurs at constant temperature






11. Color of Li (flame test)






12. % yield






13. Energy (definition)






14. AX3E2






15. Variable for energy of e- - goes from 1 -2 -3 on up






16. Only contains ions that change in reaction






17. Mol/L - concentration of a solution






18. Heat capacity formula






19. This MUST be determined experimentally






20. When n=3 ->2 - color=






21. A monoatomic cation takes name from...






22. Occupies the space above and below a sigma bond






23. AX3E2






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






25. Reverse rxn occurs when






26. Like dissolves...






27. Proton donors






28. Equation to find Ea from reaction rate constants at two different temperatures






29. H?+NH3?NH4






30. (msubs) Can only be +1/2 or -1/2






31. Isotope






32. (organics) seven carbons






33. How fast or slow a reaction occurs - becomes slower as it reaches equilibrium






34. Newton's Second Law






35. Substances w/ critical temperatures below 25°C






36. The chemical formed when a base accepts a proton






37. AX4E






38. Vapor pressure lowering - boiling point elevation - freezing point depression - osmotic pressure






39. Energy required for melting to occur






40. Mass reactants= mass products






41. Thickness






42. Color of Cs (flame test)






43. The amount of energy/heat required to raise some substance 1 degree C






44. Cr2O7²?






45. To find activation energy use the...






46. [A] vs. time is a ...-order reaction






47. For significant digits - leading zeros ____ significant






48. (organics) single-bonded compound






49. Within a sublevel - place one e? per orbital before pairing them

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50. If anion ends in -ite - acid name ends in...