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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. Energy (definition)






2. Increase Volume






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






4. A measure of randomness or disorder






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






6. ClO3²?






7. H + donor






8. Raising heat - adding catalyst - heighten concentration - bigger surface area






9. These orbitals are diagonal






10. Ether prefix






11. All _________ compounds are electrolytes






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

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13. H?+NH3?NH4






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






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






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






17. An element with several different forms - each with different properties (i.e. graphite & diamond)






18. Atoms combine in fixed whole # ratios






19. Symbol for Enthalpy






20. Spontaneous emission of radiation






21. neutron (symbol)






22. #NAME?






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






24. For significant digits - trailing zeros _____ significant






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






26. AX5E






27. Force acting over distance






28. Elements on staircase on periodic table






29. The chemical formed when a base accepts a proton






30. Ability of an atom in a molecule to attract shared electrons to itself






31. (organics) five carbons






32. K






33. ClO2¹?






34. Faraday's constant






35. Mixing of gases






36. PO4³?






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






38. Verticals on the periodic table






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






40. 120° - sp^2






41. Delta H (AH) = ?






42. Bomb Calorimeter






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






44. Substances that form OH- when dissolved in water; proton acceptors






45. Isotope






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






47. All cations are soluble with sulfate EXCEPT






48. When n=6 ->2 - color=






49. HCl - HBr - HI - HNO3 - HClO4 - H2SO4






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







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