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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. A cell in which electrolysis is carried out






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






4. A substance composed of two or more metals - which are intimately mixed; usually made by melting the metals together






5. Referring to any substance that has basic properties






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






7. 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






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






9. The measure of disorder in a system






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






11. The process whereby gases or liquids intermingle freely of their own accord






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






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






14. An ion that has a positive charge






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






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






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






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






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






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






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






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






23. 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






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






25. Capable of being drawn into a thing wire






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






27. Containing no water






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






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






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






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






32. The minimum energy necessary to start a reaction






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






34. 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






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






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






37. A bond between atoms involving two electron pairs - unsaturated






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






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






40. Process for converting atmospheric nitrogen into compounds






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






42. A chemical action in which both heat and light are given off






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






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






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






46. Substance that takes water from another substance






47. 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






48. To take water from a substance






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






50. 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







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