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






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






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






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






5. 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






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






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






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






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






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






11. An ion that has a positive charge






12. 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






13. Having definite molecular or ionic structure






14. A liquid that will conduct and electric current






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






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






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






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






19. 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






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






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






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






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






24. The measure of disorder in a system






25. 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






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






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






28. A compound such as CH3NH2 - derived from ammonia by substituting one or more hydro-carbon radicals for hydrogen atoms






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






30. 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






31. 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






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






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






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






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






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






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






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






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






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






41. Chemical reaction that results in an absorption of heat






42. Solid carbon dioxide






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






44. Colloidal substance that forms a film about the particles of two immiscible liquids so that one remains suspended in the other






45. Process for converting atmospheric nitrogen into compounds






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






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






48. Having no definite crystalline structure






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






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