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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. The measure of disorder in a system






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






3. 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






4. 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






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






6. The minimum energy necessary to start a reaction






7. 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)






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






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






10. A cell in which electrolysis is carried out






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






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






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






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






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






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






17. A terminal of an electrolytic cell






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






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






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






21. Chemical reaction that results in an absorption of heat






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






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






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






25. A salt formed by replacing part of the hydrogen ions of a dibasic or tribasic acid with metallic ions - Examples: NaHSO4 - NaH2PO4






26. 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






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






28. Process for converting atmospheric nitrogen into compounds






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






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






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






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






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






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






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






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






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






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






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






40. 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






41. 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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42. E=mc2 - relates mass to energy






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






44. A bond between atoms involving two electron pairs - unsaturated






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






46. Containing no water






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






48. Heat content of a chemical system






49. 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






50. Organic compound containing the -O- group