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






2. Solid carbon dioxide






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






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






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






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






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






8. The flow of a gas through a small aperture






9. The measure of disorder in a system






10. 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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11. Process of heating an organic substance - such as coal - in the absence of air to break it down into solid and volatile products






12. 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






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






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






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






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






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






18. Referring to any substance that has basic properties






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






20. Containing no water






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






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






23. A. change from gas to liquid B. the combination of molecules without water






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






25. Having no definite crystalline structure






26. 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






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






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






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






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






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






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






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






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






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






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






37. 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






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






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






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






41. 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






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






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






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






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






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






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






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






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






50. One of the building blacks matter is composed of - only one type of atom; cannot be further decomposed