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






2. An ion that has a positive charge






3. One of the building blacks matter is composed of - only one type of atom; cannot be further decomposed






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






5. Containing no water






6. Loss by a substance of its water of hydration on exposure to air at ordinary temperatures






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






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






9. 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






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






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






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






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






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






15. The flow of a gas through a small aperture






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






17. Having no definite crystalline structure






18. Chemical reaction that results in an absorption of heat






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






20. Capable of being drawn into a thing wire






21. To take water from a substance






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






23. 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






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






25. Organic compound containing the -O- group






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






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






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






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






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






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






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






33. A cell in which electrolysis is carried out






34. Solid carbon dioxide






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






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






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






38. E=mc2 - relates mass to energy






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






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






41. Capacity to do work






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






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






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






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






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






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






48. 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






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






50. Positively charged helium nuclei