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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. 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)






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






3. A specially treated and finely divided form of carbon - which possesses a high degree of absorbtion






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






5. Heat content of a chemical system






6. 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






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






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






9. A terminal of an electrolytic cell






10. A cell in which electrolysis is carried out






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






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






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






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






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






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






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






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






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






20. A compound such as CH3NH2 - derived from ammonia by substituting one or more hydro-carbon radicals for hydrogen atoms






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






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






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






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. High=speed - negatively charged electrons emitted in radiations






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






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






28. The process of taking up by capillary - osmotic - chemical - or solvent action - as a sponge absorbs water






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






30. 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






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






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






33. Solid carbon dioxide






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






35. 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






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






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






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






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






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






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






42. Organic compound containing the -O- group






43. Substance that takes water from another substance






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






45. 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






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






47. The measure of disorder in a system






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






49. E=mc2 - relates mass to energy






50. 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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