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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. AX2E - AX2E2






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






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






4. The amount of energy/heat required to raise some substance 1 degree C






5. Proton donors






6. All cations are soluble with sulfate EXCEPT






7. Tools NEEDED for dilution






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






9. Ketone suffix






10. States molecules at a given temp. vary in kinetic energy along a bell-curve of molecular velocities






11. 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






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






13. Point at which vapor pressure=air pressure above






14. Aldehyde suffix






15. Bond bond in which atoms aren't so different that electrons are completely transferred but are different enough that unequal sharing occurs






16. The actual amount of product produced in an experiment






17. 2+ charge






18. (organics) nine carbons






19. 760 mmHg - 760 torr






20. Compound in which there is a bond between two non-metals; when naming them you use the numerical prefixes (may NOT be reduced i.e. S2F4 may not become SF2)






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






22. Proton acceptors - must have an unshared pair of e?s






23. Mol of solute/kg of solvent






24. Lowers activation energy






25. I¹?






26. 109.5° - sp^3






27. A measure of resistance of an object to a change in its state of motion






28. The mixing of native atomic orbitals to form special orbitals for bonding






29. The intermolecular attractions resulting from the constant motion of electrons and the creation of instantaneous dipoles






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






31. K






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






33. AX3






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






35. Planck's constant - used to calculate energy w/frequency






36. l=2






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






38. Gas to liquid






39. Releases/gives off heat (negative value)






40. Where reduction occurs






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






42. .69/k






43. H?+OH??H2O






44. (organics) six carbons






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






46. SI unit of energy; Kg*m^2/s^2






47. Metal oxide + H20 ->






48. negative ion






49. Actual Yield/Theoretical Yield*100%






50. To find activation energy use the...