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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. An organic hydroxyl compound formed by relacing one or more hydrogen atoms of a hydrocarbon with equal number of hydroxyl (OH) groups






2. 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






3. A cell in which electrolysis is carried out






4. 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






5. Heat content of a chemical system






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






7. Containing no water






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






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






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






11. Having definite molecular or ionic structure






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






13. A terminal of an electrolytic cell






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






15. 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






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






17. The measure of disorder in a system






18. 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






19. An ion that has a positive charge






20. 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






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






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






23. The flow of a gas through a small aperture






24. Determines how a substance will behave in a chemical reaction






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






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






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






28. The temperature above which no gas can be liquefied - regardless of the pressure applied






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






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






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






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






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






34. Particles larger than those found in a solution but smaller than those in a suspension






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






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






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






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






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






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






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






42. 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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43. Solid carbon dioxide






44. Temperature measured on the absolute scale - which has its origin at absolute zero






45. Having no definite crystalline structure






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






47. Breaking down of a compound into simpler substances or constituent elements






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






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






50. 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