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SAT Subject Test: Chemistry Vocab

Subjects : sat, science, 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. change from gas to liquid B. the combination of molecules without water






2. Chemical reaction that results in the giving off of heat






3. Organic compound containing the -O- group






4. Having no definite crystalline structure






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






6. 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






7. The series of radioactive elements starting with actinium - No. 89 - and ending with lawrencium - No. 103






8. The measure of disorder in a system






9. Unit of energy done by 1 dyne (1/980 g of force) acting through a distance of 1 cm; 2.4 x 10 (-11) kcal






10. A terminal of an electrolytic cell






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






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






13. The process of forming definitely shaped crystals when water is evaporated from a solution of the substance






14. A water wolution that contains an excess of hydroxide ions; a proton acceptor; a base turns litmus paper blue and neutralizes acids to form salts






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






16. High=speed - negatively charged electrons emitted in radiations






17. The adhesion (in an extremely thing layer) of the molecules of gases - of dissolved substances - or of liquieds to the surfaces of solid or liquid bodies with which they come into contact






18. The highest temperature at which water vapor condenses out of the air






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






20. Chemical reaction that results in an absorption of heat






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






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






23. Referring to any substance that has basic properties






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






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






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






27. Shows only the simplest ratio of the number and kids of atoms






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






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






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






31. The number of molecules in 1 gram-molecular volume of a substance - or the number of atoms in 1 gram-atomic mass of an element 6.02 x 10(-27)


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






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






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






35. The mass per unit volume of a substance; mathematical formula D=m/V






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






37. A change by which an element takes the place of another element in a compound






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






39. 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






40. Determines how a substance will behave in a chemical reaction






41. Negatively charged particle - Mass is 9.109x10(-28)






42. Depositing a thin layer of metallic element on the surface of another metal by electrolysis






43. Loss by a substance of its water of hydration on exposure to air at ordinary temperatures






44. Streams of electrons given off by the cathode of a vacuum tube






45. Having definite molecular or ionic structure






46. A water solution that has an excess of hydrogen ions; an acid turns litmus paper pink or red - has a sour taste - and neutralizes bases to form salts






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






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






49. Science concerned with the compositions of substances and the changes that they undergo






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