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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. 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






2. Referring to any substance that has basic properties






3. Process for converting atmospheric nitrogen into compounds






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






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






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






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






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






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






10. Chemical reaction that results in an absorption of heat






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






12. The measure of disorder in a system






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






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






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






16. A salt formed by replacing part of the hydrogen ions of a dibasic or tribasic acid with metallic ions - Examples: NaHSO4 - NaH2PO4






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






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






19. Capable of being drawn into a thing wire






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






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






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






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






24. Rod of certain metal such as cadmium - which controls the speed of the chain reaction by absorbing neutrons in a nuclear reactor






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






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






27. 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






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






29. Graduated glass tube into which gases are placed and subjected to an electric spark; measures the individual volumes of combining gases






30. Substance that takes water from another substance






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






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






33. An ion that has a positive charge






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






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






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






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






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






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






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






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






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






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






45. The adhesion (in an extremely thing layer) of the molecules of gases - of dissolved substances - or of liquieds to the surfaces of solid or liquid bodies with which they come into contact






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






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






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






49. Having no definite crystalline structure






50. 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