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






3. Ethyl alcohol that has been poisoned in order to produce a cheaper alcohol for industrial purposes






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






5. An ion that has a positive charge






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






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






8. 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






9. A liquid that will conduct and electric current






10. A cell in which electrolysis is carried out






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






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






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






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






15. Having definite molecular or ionic structure






16. Referring to a hydroxide that may have either acidic or basic properties - depending on the substance with which it reacts






17. 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






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






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






20. Organic compound containing the -O- group






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






22. The measure of disorder in a system






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






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






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






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






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






28. Solid carbon dioxide






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






30. 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






31. 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






32. A. change from gas to liquid B. the combination of molecules without water






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






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






35. 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






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






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






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






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






40. Containing no water






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






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






43. The flow of a gas through a small aperture






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






45. 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






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






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






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






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






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







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