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






3. The adhesion (in an extremely thing layer) of the molecules of gases - of dissolved substances - or of liquieds to the surfaces of solid or liquid bodies with which they come into contact






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






5. Having definite molecular or ionic structure






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






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






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






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






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






11. Referring to any substance that has basic properties






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






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






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






15. 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






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






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






18. The energy needed to break a chemical bond and form a neutral atom






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






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






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






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






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






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






25. 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






26. 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)






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






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






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






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






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






32. Substance that takes water from another substance






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






34. 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






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






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






37. An ion that has a positive charge






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






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






40. Chemical reaction that results in an absorption of heat






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






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






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






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






45. Solid carbon dioxide






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






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






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






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






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