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






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






3. Capable of being drawn into a thing wire






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






5. Absorbtion by a substance of water from the air - so that the substance becomes wet






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






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






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






9. Having no definite crystalline structure






10. A cell in which electrolysis is carried out






11. 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






12. 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






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






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






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






16. Capacity to do work






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






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






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






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






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






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






23. 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)






24. Chemical reaction that results in an absorption of heat






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






26. 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






27. Substance that takes water from another substance






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






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






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






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






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






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






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






35. The flow of a gas through a small aperture






36. 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






37. 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






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






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






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






41. 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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42. Usually - a strong base - such as Sodium hydroxide - potassium hydroxide






43. 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






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






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






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






47. High=speed - negatively charged electrons emitted in radiations






48. Solid carbon dioxide






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






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