Test your basic knowledge |

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. 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






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






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






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






5. 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






6. Having no definite crystalline structure






7. 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






8. 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)






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






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






11. E=mc2 - relates mass to energy






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






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






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






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






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






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






18. The measure of disorder in a system






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






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






21. An ion that has a positive charge






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






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






24. Organic compound containing the -O- group






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






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






27. Containing no water






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






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






30. A liquid that will conduct and electric current






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






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






33. Solid carbon dioxide






34. A cell in which electrolysis is carried out






35. Positively charged helium nuclei






36. Process for converting atmospheric nitrogen into compounds






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






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






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






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






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






42. High=speed - negatively charged electrons emitted in radiations






43. The flow of a gas through a small aperture






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






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






46. 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






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






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






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






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