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. Average speed of gas






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






3. Change in moles (An) =?






4. Oxidation # of Oxygen






5. negative ion






6. A molecule having a center of positive charge and a center of negative charge






7. Anything occupying space and with mass






8. Osmotic pressure formula






9. To find activation energy use the...






10. Color of Na (flame test)






11. Experimental yield/theoretical yieldx100






12. All (though really not all - but for our purposes all) ________ compounds are NOT electrolytes






13. Degree of disorder in a system






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






15. The line running between the atoms






16. l=2






17. AX6






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






19. AX4E






20. 2 or more covalently bonded atoms






21. Calculation from K to C






22. CN¹?






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






24. Cr2O7²?






25. Point where acid completely neutralizes base






26. J/°Cmol or J/Kmol






27. HF+ OH??H2O






28. Electron pairs found in the space between the atoms






29. Raoult's Law - relations between vapor pressure and concentrations






30. Half-life equation






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






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






33. PV=nRT






34. All cations are soluble with bromide - chloride and iodide EXCEPT






35. Actual Yield/Theoretical Yield*100%






36. (organics) three carbons






37. 1.Calculate moles of each atom in molecule 2.Divide each mole number by smallest mole number 3.If necessary - multiply every mole number to get a whole number 4.Moles of each atom is subscript in empirical formula






38. The part of the universe one is focused upon (in thermodynamics)






39. Theoretical yield-experimental yield/theoretical yieldx100






40. Oxidation # of Compounds






41. Happens at lines in phase change charts






42. Mole Fraction






43. Electrons in a hydrogen atom move around the nucleus only in circular orbits






44. For colligative properties for electrolytes - the # of mols of ions/ mols of solute

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45. Only contains ions that change in reaction






46. Point at which the titrated solution changes color






47. All _________ compounds are electrolytes






48. Anions or cations as needed to produce a compound with non net charge






49. Ptotal=Pa+Pb+Pc....

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50. (# of lone pair e-)+1/2(# of shared e-)