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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. Organic w/ -O-






2. Average speed of gas






3. The total energy of the universe is constant - all systems tend towards minimum energy






4. AX4






5. neutron (symbol)






6. 1 sigma bond - 2 pi bonds






7. Driving force of the electrons






8. The rest of the universe (in thermodynamics)






9. Moles of solute/volume of soln(L)






10. Boltzmann constant - used in calculating speed of gas per molecule






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






12. OH¹?






13. Heat needed to change 1 g of substance to 1°C






14. 1 sigma bond






15. Hydroxides are soluble or insoluble?






16. Work = ?






17. All _________ compounds are electrolytes






18. The measurement of heat changes






19. Involves quantum numbers






20. For significant digits - leading zeros ____ significant






21. In a titration - the point where the indicator changes (just after moles of solid are equal to moles of base)






22. Oxidation # of Hydrogen






23. Universal IMF for nonpolar molecules






24. AX6






25. Reactant which doesn't get used up completely in a chemical reaction






26. Increase Volume






27. Happens at lines in phase change charts






28. H?+NH3?NH4






29. SO3²?






30. Cr2O7²?






31. AH of formation for a substance in its stablest form (how it is found in nature)






32. Symbol for Enthalpy






33. These orbitals are diagonal






34. CO3²?






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






36. The chemical formed when an acid donates a proton






37. Positive ion






38. 2+ charge






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






40. What is defined by you taken from the whole universe






41. Anything occupying space and with mass






42. Horizontals on the periodic table






43. Where reduction occurs






44. Ka=[products]^m/[reactants]^n






45. J/°Cmol or J/Kmol






46. Effusion of a gas is inversely proportional to the square root of the molar mass

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






48. H + donor






49. Stronger IMF= lower... weaker IMF= higher...






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