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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. Having definite molecular or ionic structure






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






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






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






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






6. Separation of the ions of an ionic compound due to the action of a solvent






7. To take water from a substance






8. A liquid that will conduct and electric current






9. 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






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






11. An ion that has a positive charge






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






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 energy needed to break a chemical bond and form a neutral atom






15. 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)






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






17. Having no definite crystalline structure






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






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






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






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






22. The mass per unit volume of a substance; mathematical formula D=m/V






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






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






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






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






27. Solid carbon dioxide






28. Containing no water






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






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






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






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






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






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






36. Capacity to do work






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






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






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






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






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






43. E=mc2 - relates mass to energy






44. The flow of a gas through a small aperture






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






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






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






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






49. 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






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