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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. Referring to any substance that has basic properties






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






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






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






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






6. Solid carbon dioxide






7. An ion that has a positive charge






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






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






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






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






12. Substance that takes water from another substance






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






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






15. 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






16. 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






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






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






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






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






21. Process for converting atmospheric nitrogen into compounds






22. 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






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






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






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






26. 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






27. A cell in which electrolysis is carried out






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






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






30. Heat content of a chemical system






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






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






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






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






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






36. The layer of gasses surrounding the earth - A unit of pressure (1 atm = 760mm of Hg or torr)






37. 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






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






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






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






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






42. E=mc2 - relates mass to energy






43. Having definite molecular or ionic structure






44. 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






45. 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






46. Continuous zigzagging movement of colloidal particles in a dispersing medium - as viewed through and ultramicroscope






47. Positively charged helium nuclei






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






49. The flow of a gas through a small aperture






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