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






2. Positively charged helium nuclei






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






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






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






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






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






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






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






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






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






12. Solid carbon dioxide






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






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






15. The measure of disorder in a system






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






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






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






19. 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






20. To take water from a substance






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






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






23. 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






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






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






26. Heat content of a chemical system






27. Capable of being drawn into a thing wire






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






29. Having definite molecular or ionic structure






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






31. Organic compound containing the -O- group






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






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






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






35. 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






36. The process of taking up by capillary - osmotic - chemical - or solvent action - as a sponge absorbs water






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






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






39. Capacity to do work






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






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






42. The process of forming definitely shaped crystals when water is evaporated from a solution of the substance






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






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






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






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






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






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






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






50. Referring to any substance that has basic properties