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






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






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






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






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






6. A reaction in which two chemical substances exchange ions with the formation of two new compounds






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






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






9. Positively charged helium nuclei






10. Separation of the ions of an ionic compound due to the action of a solvent






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






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






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






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






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






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






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






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






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






21. 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






22. Substance that takes water from another substance






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






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






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






27. An ion that has a positive charge






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






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






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






31. Depositing a thin layer of metallic element on the surface of another metal by electrolysis






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






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






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






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






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






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






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






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






40. A compound derived from another compound by the removal of water; it will combine with water to form an acid (acidic anhydride) or base (basic anhydride)






41. The difference in potential between an electrode and the solution in which it is immpesed






42. 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






43. The process by which suspended matter is removed from a liquid by passing the liquid through a porous material






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






45. 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






46. A terminal of an electrolytic cell






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






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






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






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