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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 flow of a gas through a small aperture






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






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






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






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






6. 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






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






8. Colloidal substance that forms a film about the particles of two immiscible liquids so that one remains suspended in the other






9. The measure of disorder in a system






10. Temperature measured on the absolute scale - which has its origin at absolute zero






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






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






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






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






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






16. 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






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






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






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






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






21. Capable of being drawn into a thing wire






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






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






24. 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






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






26. Containing no water






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






28. The rapid escape of excess gas that has been dissolved into a liquid






29. Suspension of fine particles or droplets of one liquid in another - the two liquids being immiscible in each other; surrounded by an emulsifying agent






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






31. The minimum energy necessary to start a reaction






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






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






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






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






36. A terminal of an electrolytic cell






37. A cell in which electrolysis is carried out






38. A liquid that will conduct and electric current






39. 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






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






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






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






43. Process for converting atmospheric nitrogen into compounds






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






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






46. Organic compound containing the -O- group






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






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






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






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