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






3. Absorbtion by a substance of water from the air - so that the substance becomes wet






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






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






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






7. Referring to any substance that has basic properties






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






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






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






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






12. To take water from a substance






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






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






15. Organic compound containing the -O- group






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






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






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






19. A substituent obtained from a saturated hydrocarbon by removing one hydrogen atom -Examples: methyl(CH3) ethyl(C2H5)






20. A temperature scale divided into 100 equal divisions and based on water freezing at 0 degress and boiling at 100 degrees






21. A specially treated and finely divided form of carbon - which possesses a high degree of absorbtion






22. A terminal of an electrolytic cell






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






24. 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






25. Having definite molecular or ionic structure






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






27. A reaction produced during nuclear fission when at least one neutron from each fission produces another fission - so that the process becomes self sustaining without additional external energy






28. Loss by a substance of its water of hydration on exposure to air at ordinary temperatures






29. A cell in which electrolysis is carried out






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






31. 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






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






33. 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)






34. The adhesion (in an extremely thing layer) of the molecules of gases - of dissolved substances - or of liquieds to the surfaces of solid or liquid bodies with which they come into contact






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






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






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






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






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






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






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






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






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






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






45. Containing no water






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






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






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






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






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