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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 minimum energy necessary to start a reaction






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






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






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






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






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






7. Positively charged helium nuclei






8. 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)






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






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






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






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






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






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






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






16. A cell in which electrolysis is carried out






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






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






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






20. 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






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






22. Having definite molecular or ionic structure






23. 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






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






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






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






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






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






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






30. Substance that takes water from another substance






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






32. A terminal of an electrolytic cell






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






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






35. 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






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






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






38. The smallest particle of an element that retains the properties of that element and can enter into a chemical reaction






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






40. Absorbtion by a substance of water from the air - so that the substance becomes wet






41. A liquid that will conduct and electric current






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






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






44. 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






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






46. Capacity to do work






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






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






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






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