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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. Molecules' tendency to stick to one another






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






3. These orbitals are diagonal






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






5. If anion ends in -ite - acid name ends in...






6. r=k






7. SO4²?






8. We cannot simultaneously determine an atom's exact path or location






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






10. 1 sigma bond - 2 pi bonds






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


12. Coffee Cup Calorimeter






13. (organics) five carbons






14. Solid to liquid






15. The heat changed in a chemical reaction.






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






17. 101 -325 Pa






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






19. Reverse rxn occurs when






20. Solution used in titration






21. The weight exerted by a column of air or the pressure exerted by the Earth's atmosphere






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






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






24. Equation to find Ea from reaction rate constants at two different temperatures






25. Mass #






26. Measure of the average kinetic energy of all the particles in a substance






27. Everything in the universe that is not defined by you as part of the system






28. Gain of electrons - decrease in oxidation #






29. AX4






30. S²?






31. Group 1 - Ammonium - Nitrates - Acetates - Sulfates - Halides






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






33. In ideal gas law problem - when it says "atmospheric" ...






34. High-energy light






35. (organics) four carbons






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






37. Pure metal or metal hydride + H20 ->






38. Has values 1 -2 -3 -...; tells energy levels






39. The chemical formed when an acid donates a proton






40. Speed per molecule of gas






41. Combined Gas Law Formula






42. A monoatomic anion is named by taking...






43. Carboxylic acid ending






44. q cal = ?






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






46. Amine prefix






47. Cr2O7²?






48. Negative enthalpy - heat flows into surroundings






49. Expresses how the concentrations depend on time






50. negative ion