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SAT Subject Test: Chemistry Vocab

Subjects : sat, science, 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. The minimum energy necessary to start a reaction

2. The difference in potential between an electrode and the solution in which it is immpesed

3. The layer of gasses surrounding the earth - A unit of pressure (1 atm = 760mm of Hg or torr)

4. Chemical reaction between an alcohol and an acid - in which an ester is formed

5. Bonding accomplished through the sharing of electrons so that atoms can fill their outer shells

6. Temperature scale that has 32 as freezing point and 212 as boiling point

7. The temperature above which no gas can be liquefied - regardless of the pressure applied

8. To take water from a substance

9. Organic compound containing the -O- group

10. A substance used to remove the excess chlorine in the bleaching process

11. The temperature at which the vapor pressure of a liquid equals the atmospheric pressure

12. A liquid that will conduct and electric current

13. Chemical reaction that results in an absorption of heat

14. Referring to a compound composed of two elements such as water

15. A unit of heat; the amount of heat needed to raise the temperature of 1 gram of water 1 degree on the celcius scale

16. An ion or particle that has a negative charge and thus is attracted to a positively charged anode

17. A bond between atoms involving two electron pairs - unsaturated

18. Separation of the ions of an ionic compound due to the action of a solvent

19. Rod of certain metal such as cadmium - which controls the speed of the chain reaction by absorbing neutrons in a nuclear reactor

20. Breaking down of a compound into simpler substances or constituent elements

21. Process for converting atmospheric nitrogen into compounds

22. The process of separation of a solution by diffusion through a semipermeable membrance

23. Graduated glass tube into which gases are placed and subjected to an electric spark; measures the individual volumes of combining gases

24. The process whereby gases or liquids intermingle freely of their own accord

25. The smallest amount of fissionable material that will sustain a chain reaction

26. A property of a solution that depends primarily on the concentration - not the type of particles present

27. Containing no water

28. Organic compound formed by dehydrating oxidized alcohol; contains the characteristic - CHO group

29. The union of atoms to form compounds or molecules by filling their outer shells of electonrs. This can be done through giving and taking electrons (ionic) or by sharing electrons

30. Covalence in which both electrons in a pair come from the same atom

31. A substance composed of two or more metals - which are intimately mixed; usually made by melting the metals together

32. Forms of the same element that differ in their crystalline structures

33. Capable of being drawn into a thing wire

34. A specially treated and finely divided form of carbon - which possesses a high degree of absorbtion

35. Unit for expressing the kinetic energy of subatomic particles; the energy acquired by an electron when it is accelerated by a potential difference of 1 volt

36. The process of separating the ions in a compound by means of electrically charged poles

37. A compound such as CH3NH2 - derived from ammonia by substituting one or more hydro-carbon radicals for hydrogen atoms

38. A nonmetallic oxide that - when placed in water - reacts to form an an acid solution

39. A substance composed of elements chemically united in definite proportions by weight

40. Nuclear reaction that releases energy because of the splitting of large nuclei into smaller ones

41. Process of heating an organic substance - such as coal - in the absence of air to break it down into solid and volatile products

42. Residual radioactivity from an atmospheric nuclear test - eventually settles on the surface of the earth

43. An instrument used to measure the amount of heat liberated or absorbed during a change

44. The breaking down of a compound into two or more simpler substances

45. One of the building blacks matter is composed of - only one type of atom; cannot be further decomposed

46. Absorbtion by a substance of water from the air - so that the substance becomes wet

47. The numerical expression of the relative strength with which the atoms of an element attract valence electrons to themselves; the higher the number - the greater the attraction

48. The point in a reversible reaction at which the forward reaction is occurring at the same rate as the opposing reaction

49. E=mc2 - relates mass to energy

50. Substance that - when added to a solution - makes changing the pH of the solution more difficule