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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. 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






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






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






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






5. Containing no water






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






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






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






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






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






12. 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






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






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






15. The process of first vaporizing a liquid and then condensing the vapor back into a liquid - leaving behind the nonvolatile impurities






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






17. 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






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






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






20. A cell in which electrolysis is carried out






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






22. Heat content of a chemical system






23. 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






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






25. E=mc2 - relates mass to energy






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






27. The minimum energy necessary to start a reaction






28. Chemical reaction that results in an absorption of heat






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






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






31. A terminal of an electrolytic cell






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






33. The flow of a gas through a small aperture






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






35. The smallest amount of fissionable material that will sustain a chain reaction






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






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






38. Isotope of hydrogen - sometimes called heavy hydrogen - with an atomic weight of 2






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






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






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






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






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






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






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






46. Substance that takes water from another substance






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






48. An ion or particle that has a negative charge and thus is attracted to a positively charged anode






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






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