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






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






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






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






5. A reaction produced during nuclear fission when at least one neutron from each fission produces another fission - so that the process becomes self sustaining without additional external 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. Capacity to do work






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






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






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






11. A cell in which electrolysis is carried out






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






13. 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






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






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






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






17. To take water from a substance






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






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






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






21. 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






22. Positively charged helium nuclei






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






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






25. 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






26. The process whereby gases or liquids intermingle freely of their own accord






27. The flow of a gas through a small aperture






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






29. Referring to any substance that has basic properties






30. 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






31. 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






32. Bonding accomplished through the sharing of electrons so that atoms can fill their outer shells






33. Chemical reaction that results in the giving off of heat






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






35. Nuclear reactor in which more fissionable material is produced than is used up during operation






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






37. A unit of heat; the amount of heat needed to raise the temperature of 1 gram of water 1 degree on the celcius scale






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






39. A substance that speeds up or slows down a reaction without being permanently changed itself






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






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






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






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






45. A terminal of an electrolytic cell






46. 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






47. Determines how a substance will behave in a chemical reaction






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






49. The rapid escape of excess gas that has been dissolved into a liquid






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