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






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






3. Solid carbon dioxide






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






5. E=mc2 - relates mass to energy






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






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






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






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






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






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






12. The highest temperature at which water vapor condenses out of the air






13. 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






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






15. 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






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






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






18. The minimum energy necessary to start a reaction






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






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






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






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






23. Temperature scale that has 32 as freezing point and 212 as boiling point






24. 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






25. 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






26. 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






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






28. A reaction in which two chemical substances exchange ions with the formation of two new compounds






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






30. An ion that has a positive charge






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






32. Substance that takes water from another substance






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






34. Containing no water






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






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






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






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






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






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






41. Referring to any substance that has basic properties






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






43. 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






44. A cell in which electrolysis is carried out






45. A substituent obtained from a saturated hydrocarbon by removing one hydrogen atom -Examples: methyl(CH3) ethyl(C2H5)






46. To take water from a substance






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






48. Chemical reaction that results in an absorption of heat






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






50. Organic compound containing the -O- group