Test your basic knowledge |

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 bond between atoms involving two electron pairs - unsaturated






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






3. 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






4. 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






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






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






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






8. The measure of disorder in a system






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






10. A temperature scale divided into 100 equal divisions and based on water freezing at 0 degress and boiling at 100 degrees






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






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






13. Having no definite crystalline structure






14. Containing no water






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






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






17. To take water from a substance






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






19. 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






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






21. An ion that has a positive charge






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






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






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






25. A liquid that will conduct and electric current






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






27. Having definite molecular or ionic structure






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






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






30. Capacity to do work






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






32. Process for converting atmospheric nitrogen into compounds






33. Usually - a strong base - such as Sodium hydroxide - potassium hydroxide






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






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






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






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






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






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






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






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






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






43. 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






44. Heat content of a chemical system






45. The flow of a gas through a small aperture






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






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






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






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






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