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Pre - AP Chemistry

Subjects : pre-ap, science
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 ratio derived from the equality between two different units that can be used to convert from one unit to the other






2. A reaction in which one or more substances are converted into different substances






3. The state of matter in which the substance has a definite volume but an indefinite shape






4. A unit that is a combination of SI base units






5. The d-block elements are metals with typical metallic properties.






6. An element that is a poor conductor of heat and electricity






7. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100






8. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg






9. A chemical compound contains the same elementsin exactly the same proportions by mass regardless of the size of the sample orthe source of the compound






10. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12






11. The number of protons in the nucleus of each atom of an element






12. An outer main energy level occupied - in most cases - by 8 electrons






13. The study of the composition - structure - and properties of matter and the changes it undergoes






14. A measure of the amount of matter






15. Minimum quantity of energy that can be lost or gained by an atom.






16. A change in which one or more substances are converted into different substances






17. No two electrons in the same atom can have the same set of four quantum numbers






18. The 14 elements with the atomic numbers 58-71.






19. The ratio of mass to volume or mass divided by volume






20. The state of matter in which a substance has neither definite volume nor definite shape






21. The energy change that occurs when an electron is acquired by a neutral atom.






22. Any substance that has a definite composition






23. A change in a substance that does not involve a change in the identity of the substance






24. One wave per second.






25. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)






26. An element that has some characteristics of metals and some characteristics of nonmetals






27. A substance that reacts in a chemical change






28. A vertical column of the periodic table






29. A vertical column of the periodic table






30. Number of waves that pass a given point in a specific time - usually one second.






31. A horizontal row of elements in the periodic table






32. An element that is a good conductor of heat and electricity






33. Mass is neither created nor destroyed duringordinary chemical or physical reactions






34. A positive ion.






35. The ability of a substance to undergo a change that transforms it into a different substance






36. 1/2 the distance between the nuclei of identical atoms that are bonded together.






37. A characteristic that can be observed or measured without changing the identity of the substance






38. A property that does not depend on the amount of matter present






39. A blend of two or more kinds of matter - each of which retains its own identity and properties






40. Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron - and all electrons in singly occupied orbitals must have the same spin state.

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41. Emission of electrons from a metal when light shines on a metal.






42. A property that depends on the amount of matter that is present






43. The weighted average of the atomic masses of thenaturally occurring isotopes of an element






44. The mass of one mole of a pure substance






45. Distance between corresponding points on adjacent waves.






46. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.






47. A testable statement






48. The electrons available to be lost - gained - or shared in the formation of chemical compounds.






49. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together






50. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)