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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. Having definite molecular or ionic structure






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






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






5. 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






6. 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






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






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






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






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






11. An ion that has a positive charge






12. Capable of being drawn into a thing wire






13. Containing no water






14. The minimum energy necessary to start a reaction






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






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






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






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






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






20. A liquid that will conduct and electric current






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






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






23. Process for converting atmospheric nitrogen into compounds






24. Substance that takes water from another substance






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






44. E=mc2 - relates mass to energy






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






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






47. 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






48. A water wolution that contains an excess of hydroxide ions; a proton acceptor; a base turns litmus paper blue and neutralizes acids to form salts






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






50. 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