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






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






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






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






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






6. An organic hydroxyl compound formed by relacing one or more hydrogen atoms of a hydrocarbon with equal number of hydroxyl (OH) groups






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






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






9. A compound whose basic structure contains the benzene ring; it usually has an odor






10. E=mc2 - relates mass to energy






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






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






13. Capable of being drawn into a thing wire






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






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






16. Solid carbon dioxide






17. 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






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






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






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






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






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






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






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






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






26. 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






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






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






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






30. The measure of disorder in a system






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






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






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. Having no definite crystalline structure






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






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






37. 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






38. Chemical reaction that results in an absorption of heat






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






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






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






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






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






44. The flow of a gas through a small aperture






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






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






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






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






49. 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






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