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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 process of separation of a solution by diffusion through a semipermeable membrance






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






3. Chemical reaction that results in an absorption of heat






4. In metallurgy: a substance that helps to melt and remove the solid impurities as slag






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






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






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






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






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






10. 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






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






12. Referring to any substance that has basic properties






13. 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






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






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






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






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






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






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






20. 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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21. The minimum energy necessary to start a reaction






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. Positively charged helium nuclei






24. A liquid that will conduct and electric current






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






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






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






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






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






30. Particles larger than those found in a solution but smaller than those in a suspension






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






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






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






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






35. Organic compound containing the -O- group






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






37. The process of forming definitely shaped crystals when water is evaporated from a solution of the substance






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






39. Process for converting atmospheric nitrogen into compounds






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






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






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






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






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






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






46. 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






47. Isotope of hydrogen - sometimes called heavy hydrogen - with an atomic weight of 2






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






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






50. 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)