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






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






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






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






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






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






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






8. 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)






9. 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






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






11. A compound whose basic structure contains the benzene ring; it usually has an odor






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






13. The process of taking up by capillary - osmotic - chemical - or solvent action - as a sponge absorbs water






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






15. Capacity to do work






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






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






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






19. 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






20. In metallurgy: a substance that helps to melt and remove the solid impurities as slag






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






22. Usually - a strong base - such as Sodium hydroxide - potassium hydroxide






23. Containing no water






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






25. Referring to any substance that has basic properties






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






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






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






29. Process for converting atmospheric nitrogen into compounds






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






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






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






33. Solid carbon dioxide






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. The smallest amount of fissionable material that will sustain a chain reaction






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






37. An ion that has a positive charge






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






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






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






41. A cell in which electrolysis is carried out






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






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






44. E=mc2 - relates mass to energy






45. 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






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






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






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






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






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







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