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






2. A nonmetallic oxide that - when placed in water - reacts to form an an acid solution






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






4. 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






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






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






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






9. A property of a solution that depends primarily on the concentration - not the type of particles present






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






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






12. Nuclear reactor in which more fissionable material is produced than is used up during operation






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






14. Positively charged helium nuclei






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






16. Heat content of a chemical system






17. 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






18. The measure of disorder in a system






19. The average mass of a number; bottom number on the element






20. Capacity to do work






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






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






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






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






25. Organic compound containing the -O- group






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






27. The minimum energy necessary to start a reaction






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






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






30. Having definite molecular or ionic structure






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






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






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






34. The energy needed to break a chemical bond and form a neutral atom






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






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






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






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






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






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






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






42. The flow of a gas through a small aperture






43. The temperature at which the vapor pressure of a liquid equals the atmospheric pressure






44. 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






45. Shows only the simplest ratio of the number and kids of atoms






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






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






48. 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






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






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