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






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






3. The adhesion (in an extremely thing layer) of the molecules of gases - of dissolved substances - or of liquieds to the surfaces of solid or liquid bodies with which they come into contact






4. Positively charged helium nuclei






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






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






7. Chemical reaction that results in an absorption of heat






8. 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






9. 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)






10. 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






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






12. 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






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






14. A chemical action in which both heat and light are given off






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






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






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






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






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






20. Containing no water






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






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






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






24. Capacity to do work






25. Solid carbon dioxide






26. Having definite molecular or ionic structure






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






28. Unit for expressing the kinetic energy of subatomic particles; the energy acquired by an electron when it is accelerated by a potential difference of 1 volt






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






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






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






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






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






34. 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






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






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






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






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






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






40. 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






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






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






43. Process for converting atmospheric nitrogen into compounds






44. The highest temperature at which water vapor condenses out of the air






45. The process of separating the ions in a compound by means of electrically charged poles






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






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






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






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