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






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






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






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






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






6. The minimum energy necessary to start a reaction






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






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






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






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






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






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






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






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






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






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






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






18. A substance composed of elements chemically united in definite proportions by weight






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






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






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






22. A specially treated and finely divided form of carbon - which possesses a high degree of absorbtion






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






24. A terminal of an electrolytic cell






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






26. Capacity to do work






27. Process for converting atmospheric nitrogen into compounds






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






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






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






31. 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






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






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






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






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






36. Substance that takes water from another substance






37. Having no definite crystalline structure






38. Referring to any substance that has basic properties






39. 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






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






41. In metallurgy: a substance that helps to melt and remove the solid impurities as slag






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






43. 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






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






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






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






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






49. Positively charged helium nuclei






50. 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)