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






2. An ion that has a positive charge






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






4. 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






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






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






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






8. Positively charged helium nuclei






9. Having no definite crystalline structure






10. 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)






11. An organic salt formed by the reaction of an alcohol with an acid






12. A cell in which electrolysis is carried out






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






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






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. Referring to any substance that has basic properties






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






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






19. Usually - a strong base - such as Sodium hydroxide - potassium hydroxide






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






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






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






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






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






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






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






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






28. The measure of disorder in a system






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






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






31. A terminal of an electrolytic cell






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






33. Heat content of a chemical system






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






35. A device used to accelerate charged particles to high energies for bombarding the nuclei of atoms






36. Having definite molecular or ionic structure






37. To take water from a substance






38. The minimum energy necessary to start a reaction






39. The process by which suspended matter is removed from a liquid by passing the liquid through a porous material






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






41. 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






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






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






44. 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)


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






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






47. The use of radioactive carbon-14 to estimate the ages of ancient materials - such as archaeological or paleontological specimens






48. 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






49. Capacity to do work






50. 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