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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. Force that holds atoms together






2. Point where acid completely neutralizes base






3. Melting






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






5. Symbol for the heat absorbed or lost molecularly (PER MOLE)






6. S²?






7. Oxidation # of Ions






8. The lowest energy configuration for an atom is the one having the max number of unpaired electrons allowed by the Pauli principle in a set of degenerate orbitals

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9. All cations are soluble with sulfate EXCEPT






10. OH¹?






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






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






13. If K>1 - then Gº<0 and reaction will be...at chemical equilibrium






14. Mass #






15. l=1






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






17. Change that occurs at constant temperature






18. 96 -485 C/mol e-






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






20. Neutralization Reaction (general format) (net ionic of which is always (H+) + (OH-) --> (H2O))






21. Substance in which something is dissolved in a solution (higher [ ])






22. A measure of randomness or disorder






23. .69/k






24. [A]=-kt + [A]0






25. Each orbital can hold two e?s each w/ opposite spins






26. When more than one valid Lewis structure can be written for a particular molecule; represented by double-headed arrows






27. Organic reaction in which two functional groups come together - resulting in the release of water






28. A given compound always has exactly the same proportion of elements by mass






29. Solution in flask being titrated






30. Group 2 metals






31. Amine prefix






32. (N) number of equivalents per liter of solution






33. R=






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






35. Loss of electrons - increase in oxidation #






36. Peak of energy diagram






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






38. Type of system in which the energy may escape - but the mass is conserved






39. Arrhenius equation






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






41. Ideal Gas Law Formula






42. #NAME?






43. Uses a spontaneous redox rxn to generate electrical energy - consists of 2 half cells






44. The entropy of a pure perfectly formed crystal @0K is 0






45. (organics) triple-bonded compound






46. AX4E






47. 120° - sp^2






48. Substance being dissolved in a solution (lower [ ])






49. Studies the rate at which a chemical process occurs and sheds light on its reaction mechanism






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

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