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AP Chemistry

Subjects : science, ap, chemistry
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. Variable for spin of electron (+.5 or -.5)

2. % yield

3. The likelihood that a rxn will occur "by itself"

4. Force that holds atoms together

5. Melting

6. 101 -325 Pa

7. Diatomic Molecules

8. Volume of gas @STP

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

10. Metal oxide + H20 ->

11. A solution that resists a change in its pH

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

13. Elements in groups 3-12

14. J/Cmol or J/Kmol

15. Ketone suffix

16. R=

17. Forward rxn occurs when

18. Similar to atomic orbitals - except between molecules

19. Loss of electrons - increase in oxidation #

20. Molarity (M)

21. SO3?

22. Symbol for Total Heat absorbed or released

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

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

25. Oxidation # of Hydrogen

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

27. Point at which vapor pressure=air pressure above

28. Degree of disorder in a system

29. 1.Volume of individual particles can be assumed to be zero 2.The particles are in constant motion - which causes pressure 3.Particles exert no forces on each other 4.The average kinetic energy of the particles is directly affected by temperature(K)

30. A solution that resists a change in pH - contains both a weak acid and its conjugate base

31. Work = ?

32. 109.5 - sp^3

33. n+m (these are orders of reactants)

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

35. 760 mmHg - 760 torr

36. Speed of light - C

37. AX4E

38. NO3?

39. High-speed electrons

40. Energy needed to vaporize a mole of a liquid

41. The rest of the universe (in thermodynamics)

42. K

43. Energy required for liquid?gas

44. Ideal Gas Law Formula

45. (organics) six carbons

46. Oxidation # of free elements

47. Electron (symbol)

48. R in instances that pertain to energy

49. r=k[A]^2

50. Composition Formula