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






2. E=mc2 - relates mass to energy






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






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






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






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






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






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






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






10. An ion that has a positive charge






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






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






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






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






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






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






17. The minimum energy necessary to start a reaction






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






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






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






21. Referring to any substance that has basic properties






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






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






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






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






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






27. 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






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






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






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






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






32. Having definite molecular or ionic structure






33. To take water from a substance






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






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






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






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






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






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






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






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






42. 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






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






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






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






46. A cell in which electrolysis is carried out






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






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






49. Heat content of a chemical system






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