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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. 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






2. Referring to any substance that has basic properties






3. 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






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






5. Containing no water






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






7. 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






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






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






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






11. Heat content of a chemical system






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






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






14. 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






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






16. The number of molecules in 1 gram-molecular volume of a substance - or the number of atoms in 1 gram-atomic mass of an element 6.02 x 10(-27)

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






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






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






20. Top number on periodic table - The number of protons in the nucleus - The number of electrons in an atom






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






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






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






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






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






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






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






28. Having definite molecular or ionic structure






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






30. Substance that takes water from another substance






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






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






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






34. 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






35. 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






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






37. 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)






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






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






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






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






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






43. Capable of being drawn into a thing wire






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






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






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






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






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






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






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