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






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






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






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






5. A cell in which electrolysis is carried out






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






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






8. 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






9. 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






10. Temperature measured on the absolute scale - which has its origin at absolute zero






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






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






13. A liquid that will conduct and electric current






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






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






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






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






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






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






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






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






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






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






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






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






26. An instrument used to measure the amount of heat liberated or absorbed during a change






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






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






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






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






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






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






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






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






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






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






38. Breaking down of a compound into simpler substances or constituent elements






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






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






41. Process for converting atmospheric nitrogen into compounds






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






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






44. Organic compound containing the -O- group






45. Forms of the same element that differ in their crystalline structures






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






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






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






49. The smallest particle of an element that retains the properties of that element and can enter into a chemical reaction






50. Heat content of a chemical system