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






2. Referring to a compound composed of two elements such as water






3. The flow of a gas through a small aperture






4. Substance that takes water from another substance






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






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






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






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






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






10. A cell in which electrolysis is carried out






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






12. A liquid that will conduct and electric current






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






14. An ion that has a positive charge






15. Positively charged helium nuclei






16. 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






17. Process for converting atmospheric nitrogen into compounds






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






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






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






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






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






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






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






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






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






27. 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






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






29. 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






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






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






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






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






34. 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






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






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






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






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






39. Science concerned with the compositions of substances and the changes that they undergo






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






41. 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






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






43. Having no definite crystalline structure






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






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






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






47. E=mc2 - relates mass to energy






48. Containing no water






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






50. The minimum energy necessary to start a reaction