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






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






3. The minimum energy necessary to start a reaction






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






5. Capacity to do work






6. The temperature above which no gas can be liquefied - regardless of the pressure applied






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






8. The measure of disorder in a system






9. The flow of a gas through a small aperture






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






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






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






13. Capable of being drawn into a thing wire






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






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






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






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






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






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






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






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






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






23. Unit of energy done by 1 dyne (1/980 g of force) acting through a distance of 1 cm; 2.4 x 10 (-11) kcal






24. 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)






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






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






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






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






29. Chemical reaction between an alcohol and an acid - in which an ester is formed






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






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






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






33. Solid carbon dioxide






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






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






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






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






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






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






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






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






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






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






44. Referring to any substance that has basic properties






45. Having no definite crystalline structure






46. Positively charged helium nuclei






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






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






49. 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






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