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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. A device in which chemical energy is changed to electrical energy






2. Ketone suffix






3. Organic w/ -NH2






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






5. 2 or more covalently bonded atoms






6. Gain of electrons - decrease in oxidation #






7. Delta H (AH) = ?






8. Colors of Reaction when (Cr2O7 2-) --> (Cr 3+)






9. Different form of same element






10. Mass percent






11. Oxidation # of Oxygen






12. Increase Pressure






13. If needed - indicate charge of metal(cation) by...






14. 1 sigma bond - 2 pi bonds






15. H+ Acceptor






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






17. Mass #






18. % yield






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






20. Heat required to raise the system 1°C






21. Force per unit area






22. Matter can't be created nor destroyed






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






24. 109.5° - sp^3






25. =vM2/M1






26. 1 sigma bond - 1 pi bond






27. A solution that resists a change in its pH






28. Where oxidation occurs






29. 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






30. High-speed electrons






31. Universal IMF for nonpolar molecules






32. Amount of gravitational force exerted on an object






33. 1 sigma bond






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






35. U(rms)=(3RT/M)^1/2






36. Describe various properties of one orbital






37. 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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38. Has values from -l to l - including zero; tells orientation of the orbital relative to other orbitals






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

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40. Similar to atomic orbitals - except between molecules






41. 120° - sp^2






42. A solid or gas that can be formed when 2 or more aqueous reactants come together






43. Proton (symbol)






44. Cl¹?






45. AX4E2






46. Color of Cs (flame test)






47. ClO4¹?






48. PV=nRT






49. Metal oxide + H20 ->






50. Driving force of the electrons