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






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






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






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






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






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






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






8. Capacity to do work






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






10. Referring to any substance that has basic properties






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






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






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






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






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






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






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






18. Having definite molecular or ionic structure






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






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






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






23. 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






24. 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






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






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






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






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






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






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






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






32. Process for converting atmospheric nitrogen into compounds






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






34. Positively charged helium nuclei






35. 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






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






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






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






39. 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






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






41. Heat content of a chemical system






42. E=mc2 - relates mass to energy






43. The rapid escape of excess gas that has been dissolved into a liquid






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






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






46. 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






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






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






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






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







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