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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. Positively charged helium nuclei






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






3. Having no definite crystalline structure






4. A cell in which electrolysis is carried out






5. Loss by a substance of its water of hydration on exposure to air at ordinary temperatures






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






7. A terminal of an electrolytic cell






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






9. 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






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






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






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






13. Colloidal substance that forms a film about the particles of two immiscible liquids so that one remains suspended in the other






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






15. The union of atoms to form compounds or molecules by filling their outer shells of electonrs. This can be done through giving and taking electrons (ionic) or by sharing electrons






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






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






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






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






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






21. The process of separation of a solution by diffusion through a semipermeable membrance






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






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






24. Chemical reaction that results in an absorption of heat






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






26. The minimum energy necessary to start a reaction






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






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






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






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






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






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






34. 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






35. Organic compound containing the -O- group






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






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






38. Temperature scale that has 32 as freezing point and 212 as boiling point






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






40. To take water from a substance






41. 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






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






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






44. Capable of being drawn into a thing wire






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






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






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






48. 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)






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






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