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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. AP doesn't deal with ...-order reaction - don't pick it!






2. Unusually strong dipole forces found when H is bonded to N - O - or F






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






4. Half-life equation






5. A neutral molecule/ion having a lone e- pair that can be used to form a bond to a metal ion






6. Instrument used to measure the pressure of a not-atmospheric gas (open or closed system)






7. The reactant in the reduction reaction that forces the oxidation reaction to occur






8. Higher in energy than the atomic orbitals of which it is composed






9. Mol/L - concentration of a solution






10. The reactant that is being reduced - brings about oxidation






11. Mols A/ total mols - XA






12. Lowers activation energy






13. 2 or more covalently bonded atoms






14. Force that holds atoms together






15. If Q<Ksp






16. Kinetic Energy per molecule






17. Point at which solid?liquid occurs






18. 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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19. Function in which it doesn't matter HOW the changes take place - only that they do; you can use to formula Final - Initial ( i.e. energy - pressure - volume - temperature - sort of moles)






20. neutron (symbol)






21. (organics) double-bonded compound






22. Energy required for melting to occur






23. Molarity (M)






24. R in instances that pertain to energy






25. Boiling point elevation formula






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






27. Heat required to raise the system 1°C






28. When n=4 ->2 - color=






29. Rate of Diffusion/Effusion formula






30. Assumes that a molecule is composed of atoms that are bound together by sharing pairs of electrons using the atomic orbitals of the bound atoms






31. Similar to atomic orbitals - except between molecules






32. Kinetic Energy of an individual particle formula






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






34. Energy involved in gaining an electron to become a negative ion






35. Substances that form H+ when dissolved in water; proton donors






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






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

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38. Temperature-pressure combination at which solid - liquid - and gas states appear






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






40. Oxidation # of Halogens






41. Elements which have all electrons paired and relatively unaffected by magnetic fields






42. Idea Gas Law (actual rules)






43. Pairs of electrons localized on an atom






44. Dalton's Law of Partial Pressures (to find partial pressure formula)






45. Ptotal=P1+P2+P3+...

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46. All _________ compounds are electrolytes






47. Color of Cs (flame test)






48. AX5E






49. Experimental yield/theoretical yieldx100






50. Group 2 metals