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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. Chemical reaction that results in the giving off of heat






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






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






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






5. 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






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






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






8. 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






9. 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






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






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






12. 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)

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13. E=mc2 - relates mass to energy






14. The minimum energy necessary to start a reaction






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






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






17. An ion that has a positive charge






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






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






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






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






22. Containing no water






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






24. A reaction in which two chemical substances exchange ions with the formation of two new compounds






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






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






27. Positively charged helium nuclei






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






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






30. 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






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






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






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






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






35. Ethyl alcohol that has been poisoned in order to produce a cheaper alcohol for industrial purposes






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






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






38. The process of taking up by capillary - osmotic - chemical - or solvent action - as a sponge absorbs water






39. Substance that takes water from another substance






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






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






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






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






45. Having definite molecular or ionic structure






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






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






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






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






50. Heat content of a chemical system