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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. The numerical expression of the relative strength with which the atoms of an element attract valence electrons to themselves; the higher the number - the greater the attraction






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






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






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






5. Positively charged helium nuclei






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






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






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






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






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






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






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






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






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






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






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






17. 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






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






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






20. 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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21. E=mc2 - relates mass to energy






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






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






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






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






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






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






28. 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






29. Organic compound formed by dehydrating oxidized alcohol; contains the characteristic - CHO group






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






31. Process for converting atmospheric nitrogen into compounds






32. An ion that has a positive charge






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






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






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






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






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






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






39. 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






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






41. 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






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






43. The minimum energy necessary to start a reaction






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






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






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






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






48. Capacity to do work






49. Heat content of a chemical system






50. Containing no water