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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. 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






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






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






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






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






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






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






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






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






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






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






12. Separation of the ions of an ionic compound due to the action of a solvent






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






14. A compound such as CH3NH2 - derived from ammonia by substituting one or more hydro-carbon radicals for hydrogen atoms






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






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






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






18. 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






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






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






21. Positively charged helium nuclei






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






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






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






25. Referring to any substance that has basic properties






26. To take water from a substance






27. 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






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






29. E=mc2 - relates mass to energy






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






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






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






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






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






35. The flow of a gas through a small aperture






36. A terminal of an electrolytic cell






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






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






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






40. Process for converting atmospheric nitrogen into compounds






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






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






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






44. Solid carbon dioxide






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






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






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






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






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






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