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






3. The minimum energy necessary to start a reaction






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






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






6. To take water from a substance






7. 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






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






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






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






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






12. A cell in which electrolysis is carried out






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






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






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






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






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






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






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






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






21. Chemical reaction that results in an absorption of heat






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






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






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






25. E=mc2 - relates mass to energy






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






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






28. Having no definite crystalline structure






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






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






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






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






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






34. Containing no water






35. Referring to any substance that has basic properties






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






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






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






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






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






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






43. Suspension of fine particles or droplets of one liquid in another - the two liquids being immiscible in each other; surrounded by an emulsifying agent






44. Process for converting atmospheric nitrogen into compounds






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






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






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






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






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






50. 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