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






3. 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






4. 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






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






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






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






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






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






10. An organic salt formed by the reaction of an alcohol with an acid






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






12. A terminal of an electrolytic cell






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






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






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






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






17. Capable of being drawn into a thing wire






18. To take water from a substance






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






20. The point in a reversible reaction at which the forward reaction is occurring at the same rate as the opposing reaction






21. The minimum energy necessary to start a reaction






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






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






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






26. Shows only the simplest ratio of the number and kids of atoms






27. Organic compound formed by dehydrating oxidized alcohol; contains the characteristic - CHO group






28. A liquid that will conduct and electric current






29. 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






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






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






32. E=mc2 - relates mass to energy






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






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






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






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






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






38. Suspension of fine particles or droplets of one liquid in another - the two liquids being immiscible in each other; surrounded by an emulsifying agent






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






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






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






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






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






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






45. Solid carbon dioxide






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






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






48. Substance that takes water from another substance






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






50. Containing no water







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