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






2. Positively charged helium nuclei






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






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






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






6. The minimum energy necessary to start a reaction






7. Having no definite crystalline structure






8. To take water from a substance






9. A cell in which electrolysis is carried out






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






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






12. 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






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






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






15. 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






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






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






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






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






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






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






22. 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






23. A liquid that will conduct and electric current






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






25. 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)


26. The electrode in an electrolytic cell that is negatively charged and attracts positive ions






27. Solid carbon dioxide






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






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






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






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






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






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






34. Process for converting atmospheric nitrogen into compounds






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






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






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






38. Capacity to do work






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






40. 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






41. Containing no water






42. 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






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






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






45. Chemical reaction that results in an absorption of heat






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






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






48. The process of forming definitely shaped crystals when water is evaporated from a solution of the substance






49. The process of first vaporizing a liquid and then condensing the vapor back into a liquid - leaving behind the nonvolatile impurities






50. Substance that takes water from another substance