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






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






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






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






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






6. 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






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






8. 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






9. A cell in which electrolysis is carried out






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






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






12. High=speed - negatively charged electrons emitted in radiations






13. A terminal of an electrolytic cell






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






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






16. Top number on periodic table - The number of protons in the nucleus - The number of electrons in an atom






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






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






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






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






21. A nonmetallic oxide that - when placed in water - reacts to form an an acid solution






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






23. 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)






24. Having no definite crystalline structure






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






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






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






28. Substance that takes water from another substance






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






30. 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






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






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






33. 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






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






35. 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






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






37. To take water from a substance






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






39. Organic compound containing the -O- group






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






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






42. Referring to any substance that has basic properties






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






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






45. Particles larger than those found in a solution but smaller than those in a suspension






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






47. 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






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






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






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