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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 breaking down of a compound into two or more simpler substances






2. 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






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






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






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






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






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






8. An ion that has a positive charge






9. 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






10. A terminal of an electrolytic cell






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






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






13. A compound derived from another compound by the removal of water; it will combine with water to form an acid (acidic anhydride) or base (basic anhydride)






14. Substance that takes water from another substance






15. 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






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






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






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






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






20. 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






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






22. A liquid that will conduct and electric current






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






24. Heat content of a chemical system






25. Referring to any substance that has basic properties






26. To take water from a substance






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






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






29. 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






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






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






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






33. Determines how a substance will behave in a chemical reaction






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






36. Chemical reaction that results in an absorption of heat






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






38. Organic compound containing the -O- group






39. E=mc2 - relates mass to energy






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






43. Containing no water






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






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






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






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






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






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






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







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