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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 cell in which electrolysis is carried out






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






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






4. The minimum energy necessary to start a reaction






5. Heat content of a chemical system






6. 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






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






8. Positively charged helium nuclei






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






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






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






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






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






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






15. The smallest particle of an element that retains the properties of that element and can enter into a chemical reaction






16. Having no definite crystalline structure






17. 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






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






19. Process for converting atmospheric nitrogen into compounds






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






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






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






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






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






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






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






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






28. 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






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






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






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






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






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






34. Referring to any substance that has basic properties






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






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






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






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






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






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






41. An ion that has a positive charge






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






43. The flow of a gas through a small aperture






44. E=mc2 - relates mass to energy






45. Chemical reaction that results in an absorption of heat






46. 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






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






48. Containing no water






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






50. Capable of being drawn into a thing wire