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






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






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






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






5. 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






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






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






8. 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






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






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






11. 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






12. 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






13. Having definite molecular or ionic structure






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






15. E=mc2 - relates mass to energy






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






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






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






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






20. Heat content of a chemical system






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






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






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






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






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






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






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






28. A terminal of an electrolytic cell






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






30. To take water from a substance






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






32. 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






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






34. Containing no water






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






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






37. Capable of being drawn into a thing wire






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






39. Chemical reaction that results in an absorption of heat






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






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






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






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






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






45. Positively charged helium nuclei






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






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






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






49. The flow of a gas through a small aperture






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