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






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






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






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






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






6. An ion that has a positive charge






7. The measure of disorder in a system






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






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






10. 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






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






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






13. 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






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






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






16. Chemical reaction that results in an absorption of heat






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






18. Having definite molecular or ionic structure






19. Having no definite crystalline structure






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






21. A terminal of an electrolytic cell






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






23. E=mc2 - relates mass to energy






24. Bonding accomplished through the sharing of electrons so that atoms can fill their outer shells






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






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






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 substance composed of elements chemically united in definite proportions by weight






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






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






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






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






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






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






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






36. The flow of a gas through a small aperture






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






38. Referring to any substance that has basic properties






39. The minimum energy necessary to start a reaction






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






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






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






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






44. The point in a reversible reaction at which the forward reaction is occurring at the same rate as the opposing reaction






45. A liquid that will conduct and electric current






46. Substance that - when added to a solution - makes changing the pH of the solution more difficule






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






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






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






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