Test your basic knowledge |

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






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






3. Chemical reaction that results in an absorption of heat






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






5. 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






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






7. E=mc2 - relates mass to energy






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






9. Process for converting atmospheric nitrogen into compounds






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






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






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






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






14. Capacity to do work






15. The measure of disorder in a system






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






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






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






19. 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






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






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






22. An ion that has a positive charge






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






24. 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






25. 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)






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






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






28. A cell in which electrolysis is carried out






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






30. Negatively charged particle - Mass is 9.109x10(-28)






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






32. 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






33. Having no definite crystalline structure






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






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






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






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






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






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






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






41. 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






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






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






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






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






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






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






49. Positively charged helium nuclei






50. Containing no water