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






2. The flow of a gas through a small aperture






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






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






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






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






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






8. Streams of electrons given off by the cathode of a vacuum tube






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






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






11. Containing no water






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






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






14. 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






15. The electrode in an electrolytic cell that is negatively charged and attracts positive ions






16. The measure of disorder in a system






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






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






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






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






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






23. Solid carbon dioxide






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






25. A terminal of an electrolytic cell






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






27. 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






28. Having definite molecular or ionic structure






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






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






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






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






33. 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






34. To take water from a substance






35. Substance that takes water from another substance






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






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






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






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






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






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






42. 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)






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






44. Process for converting atmospheric nitrogen into compounds






45. A cell in which electrolysis is carried out






46. The minimum energy necessary to start a reaction






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






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






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






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