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






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






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






4. A terminal of an electrolytic cell






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






6. Having definite molecular or ionic structure






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






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






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






10. A cell in which electrolysis is carried out






11. Process for converting atmospheric nitrogen into compounds






12. 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






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






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






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






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






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






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






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






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






21. 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






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






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






24. 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






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






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






27. 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






28. The adhesion (in an extremely thing layer) of the molecules of gases - of dissolved substances - or of liquieds to the surfaces of solid or liquid bodies with which they come into contact






29. Substance that takes water from another substance






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






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






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






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






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






35. Positively charged helium nuclei






36. Capacity to do work






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






38. 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






39. To take water from a substance






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






41. The use of radioactive carbon-14 to estimate the ages of ancient materials - such as archaeological or paleontological specimens






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






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






44. A liquid that will conduct and electric current






45. Heat content of a chemical system






46. The flow of a gas through a small aperture






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






48. Capable of being drawn into a thing wire






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






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