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






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






3. A device used to accelerate charged particles to high energies for bombarding the nuclei of atoms






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






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






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






7. Containing no water






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






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






10. The process of separation of a solution by diffusion through a semipermeable membrance






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






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






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






14. Capacity to do work






15. The process by which suspended matter is removed from a liquid by passing the liquid through a porous material






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






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






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






19. A metallic oxide that forms a base when placed in water






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






21. E=mc2 - relates mass to energy






22. Referring to any substance that has basic properties






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






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






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






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






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






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






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






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






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






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






33. Having definite molecular or ionic structure






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






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






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






37. The process of taking up by capillary - osmotic - chemical - or solvent action - as a sponge absorbs water






38. Process for converting atmospheric nitrogen into compounds






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






40. Substance that takes water from another substance






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






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






43. To take water from a substance






44. 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






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






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






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






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






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