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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 average mass of a number; bottom number on the element






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






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






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






5. 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






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






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






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






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






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






11. Having no definite crystalline structure






12. 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






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






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






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






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






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






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






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






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






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






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






23. The minimum energy necessary to start a reaction






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






25. Ethyl alcohol that has been poisoned in order to produce a cheaper alcohol for industrial purposes






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






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






28. 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






29. The electrode in an electrolytic cell that is negatively charged and attracts positive ions






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






31. Organic compound containing the -O- group






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






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






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






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






36. Process for converting atmospheric nitrogen into compounds






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






38. The flow of a gas through a small aperture






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






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






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






42. Referring to any substance that has basic properties






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






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






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






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






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






48. 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






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






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