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






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






3. Process for converting atmospheric nitrogen into compounds






4. 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






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






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






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






8. Shorthand method of showing the changes that take place in a chemical reaction






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






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






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






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






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






14. The process of forming definitely shaped crystals when water is evaporated from a solution of the substance






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






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






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






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






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






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






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






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






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






24. Organic compound containing the -O- group






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






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






27. Referring to any substance that has basic properties






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






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






30. Chemical reaction that results in an absorption of heat






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






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






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






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






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






36. Solid carbon dioxide






37. A terminal of an electrolytic cell






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






39. A liquid that will conduct and electric current






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






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






43. The minimum energy necessary to start a reaction






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






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






46. 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






47. Having definite molecular or ionic structure






48. 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






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






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