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






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






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






4. Heat content of a chemical system






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






6. A compound derived from another compound by the removal of water; it will combine with water to form an acid (acidic anhydride) or base (basic anhydride)






7. One of the "building blocks" of proteins; contains one or more NH2- groups that have replaced the same number of hydrogen atoms in an organic acid






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






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






10. A metallic oxide that forms a base when placed in water






11. The process of first vaporizing a liquid and then condensing the vapor back into a liquid - leaving behind the nonvolatile impurities






12. The average mass of a number; bottom number on the element






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






14. 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






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






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






17. Nuclear reactor in which more fissionable material is produced than is used up during operation






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






19. Having no definite crystalline structure






20. An instrument - invented by Toricelli in 1643 - used for measuring atmospheric pressure






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






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






23. Process for converting atmospheric nitrogen into compounds






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






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






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






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






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






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






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






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






32. The electrode in an electrolytic cell that is negatively charged and attracts positive ions






33. A cell in which electrolysis is carried out






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






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






36. Having definite molecular or ionic structure






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






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






39. Continuous zigzagging movement of colloidal particles in a dispersing medium - as viewed through and ultramicroscope






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






41. The energy needed to break a chemical bond and form a neutral atom






42. Solid carbon dioxide






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






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






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






46. Capacity to do work






47. 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






48. A chance that alters the atomic structures of the substances involved and results in different properties






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






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