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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. Chemical reaction that results in an absorption of heat






2. Solid carbon dioxide






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






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






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






6. 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






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






8. 1/2 the distance between adjacent nuclei in the crystalline or solid phase of an element; distance from the atomic nucleus to the valence electrons






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






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






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






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






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






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






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






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






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






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






19. The minimum energy necessary to start a reaction






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






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






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






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






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






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






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






27. A liquid that will conduct and electric current






28. Having no definite crystalline structure






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






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






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






32. Referring to any substance that has basic properties






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






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






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






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






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






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






39. The measure of disorder in a system






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






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






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






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






44. Heat content of a chemical system






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






46. 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






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






48. Streams of electrons given off by the cathode of a vacuum tube






49. Organic compound containing the -O- group






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