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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 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






2. 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






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






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






5. Particles larger than those found in a solution but smaller than those in a suspension






6. Organic compound containing the -O- group






7. Heat content of a chemical system






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






9. Bonding accomplished through the sharing of electrons so that atoms can fill their outer shells






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






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






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






13. Process for converting atmospheric nitrogen into compounds






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






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






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






17. 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)






18. An instrument used to measure the amount of heat liberated or absorbed during a change






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






20. 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






21. 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






22. A bond between atoms involving two electron pairs - unsaturated






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






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






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






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






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






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






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






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






31. 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






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






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






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






35. A liquid that will conduct and electric current






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






37. Having no definite crystalline structure






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






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






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






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






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






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






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






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






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






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






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






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






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