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






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






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






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






6. Ethyl alcohol that has been poisoned in order to produce a cheaper alcohol for industrial purposes






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






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






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






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






12. 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






13. Capacity to do work






14. Having no definite crystalline structure






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






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






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






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






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






20. 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






21. A cell in which electrolysis is carried out






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






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






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






25. Temperature measured on the absolute scale - which has its origin at absolute zero






26. The process of forming definitely shaped crystals when water is evaporated from a solution of the substance






27. 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






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






29. Referring to any substance that has basic properties






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






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






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






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






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






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






36. Substance that takes water from another substance






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






38. Heat content of a chemical system






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






40. 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






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






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






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






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






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






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






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






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






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






50. 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