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






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






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






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






5. Capable of being drawn into a thing wire






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






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






8. Referring to any substance that has basic properties






9. 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






10. 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






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






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






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






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






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






16. 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






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






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






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






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






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






22. Capacity to do work






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






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






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






26. Substance that takes water from another substance






27. Positively charged helium nuclei






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






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






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






31. A substance composed of elements chemically united in definite proportions by weight






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






33. To take water from a substance






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






35. 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






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






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






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






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






40. An ion that has a positive charge






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






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






43. A water wolution that contains an excess of hydroxide ions; a proton acceptor; a base turns litmus paper blue and neutralizes acids to form salts






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






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






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






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






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






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






50. 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