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






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






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






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






5. To take water from a substance






6. 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






7. Capacity to do work






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






9. Containing no water






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






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






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






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






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






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






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






17. A. change from gas to liquid B. the combination of molecules without water






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






19. Referring to any substance that has basic properties






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






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






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






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






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






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






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






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






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






29. Heat content of a chemical system






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






31. 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)






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






33. The flow of a gas through a small aperture






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






35. E=mc2 - relates mass to energy






36. Solid carbon dioxide






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






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






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






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






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






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






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






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






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






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






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






48. 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






49. Chemical reaction that results in an absorption of heat






50. 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