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

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

3. Positively charged helium nuclei

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

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

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

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

8. A compound whose basic structure contains the benzene ring; it usually has an odor

9. 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

10. E=mc2 - relates mass to energy

11. A substance that speeds up or slows down a reaction without being permanently changed itself

12. A substituent obtained from a saturated hydrocarbon by removing one hydrogen atom -Examples: methyl(CH3) ethyl(C2H5)

13. A liquid that will conduct and electric current

14. Referring to any substance that has basic properties

15. A temperature scale divided into 100 equal divisions and based on water freezing at 0 degress and boiling at 100 degrees

16. Organic compound containing the -O- group

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

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

19. Shorthand method of showing the changes that take place in a chemical reaction

20. Particles larger than those found in a solution but smaller than those in a suspension

21. 1/2 the distance between adjacent nuclei in the crystalline or solid phase of an element; distance from the atomic nucleus to the valence electrons

22. An organic hydroxyl compound formed by relacing one or more hydrogen atoms of a hydrocarbon with equal number of hydroxyl (OH) groups

23. Having definite molecular or ionic structure

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

25. 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

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

27. Isotope of hydrogen - sometimes called heavy hydrogen - with an atomic weight of 2

28. In metallurgy: a substance that helps to melt and remove the solid impurities as slag

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

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

31. The process of taking up by capillary - osmotic - chemical - or solvent action - as a sponge absorbs water

32. The flow of a gas through a small aperture

33. Chemical reaction that results in an absorption of heat

34. A relatively weak force of attraction between polar molecules; a component of van der Waals forces

35. Referring to a hydroxide that may have either acidic or basic properties - depending on the substance with which it reacts

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

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

38. A. change from gas to liquid B. the combination of molecules without water

39. A chemical action in which both heat and light are given off

40. Substance that takes water from another substance

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

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

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

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

46. Top number on periodic table - The number of protons in the nucleus - The number of electrons in an atom

47. Process for converting atmospheric nitrogen into compounds

48. Solid carbon dioxide

49. A reaction produced during nuclear fission when at least one neutron from each fission produces another fission - so that the process becomes self sustaining without additional external energy

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