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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. 96 -485 C/mol e-






2. Donates a single H+ Ion (... other prefixes also)






3. Amine prefix






4. Gain of electrons - decrease in oxidation #






5. The total entropy is always increasing - all systems tend towards maximum entropy






6. Driving force of the electrons






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






8. ?T=k*m(solute)






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






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






11. How to Find a Weighted Average






12. Mass #






13. Mass percent






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






15. Different form of same element






16. Oxidation # of Halogens






17. AX3E






18. Phase change from gas to solid






19. Pairs of electrons localized on an atom






20. When n=5 ->2 - color=






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






22. Has values from 0 to (n-1); tells shape of atomic orbitals






23. Mixing of gases






24. Coffee Cup Calorimeter






25. Average Kinetic Energy Formula






26. Organic w/ -NH2






27. The likelihood that a rxn will occur "by itself"






28. A solution that resists a change in its pH






29. Oxidation # of Hydrogen






30. AX5






31. Carbon - hydrogen - oxygen compounds






32. r=k






33. When _____ significant digits - round answer to least significant digit






34. Oxidation # of Compounds






35. AX2E - AX2E2






36. States molecules at a given temp. vary in kinetic energy along a bell-curve of molecular velocities






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






38. The reactant in the oxidizing reaction that forces the reduction reaction to occur






39. Speed of Diffusion/Effusion formula






40. Entropy in the universe is always...






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






42. AX4E






43. Substances w/ critical temperatures below 25°C






44. Similar to atomic orbitals - except between molecules






45. (organics) eight carbons






46. In going from a particular set of reactants to a particular set of products - the change in enthalpy is the same whether the reaction takes place in one step or in a series of steps

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47. H?+OH??H2O






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






49. CO3²?






50. Positive enthalpy - heat flows into system