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






2. The mass of one mole of a pure substance






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






4. The total amount of energy level an atom has.






5. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.






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






7. A horizontal row of elements in the periodic table






8. The smallest unit of an element that maintains the properties of that element






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






10. Two quantities that have a constant mathematical product






11. Describes mathematically the wave properties of electrons and other very small particles.






12. The energy required to remove one electron from a neutral atom of an element.






13. The measurement system accepted worldwide

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14. The state of matter in which the substance has definite volume and definite shape






15. The emission of a continuous range of frequencies of electromagnetic radiation.






16. If two or more different compounds arecomposed of the same two elements - then the ratio of the masses of the secondelement combined with a certain mass of the first element is always a ratio ofsmall whole numbers






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






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






19. An atom or group of bonded atoms that has a positive or negative charge.






20. The arrangement of electrons in an atom






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






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






23. A physical change of a substance from one state to another






24. A high-temperature physical state of matter in which atoms lose their electrons






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






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






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






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






29. A measure of the amount of matter






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






31. The p-block elements together with the s-block elements.






32. The closeness of measurements to the correct or accepted value of the quantity measured






33. A vertical column of the periodic table






34. A pure substance made of only one kind of atom






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






36. A ratio derived from the equality between two different units that can be used to convert from one unit to the other






37. One wave per second.






38. Which suborbital. (Py - Px - Pz)






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






40. A positive ion.






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






42. Anything that has mass and takes up space






43. State in which an atom has a higher potential energy than it has in it's ground state.






44. Which way it spins. (up or down)






45. The total number of protons and neutrons in the nucleus of an isotope






46. The suborbitals of an atom. (S - P - D - F)






47. A vertical column of the periodic table






48. An electron occupies the lowest-energy orbital that can receive it






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






50. A broad generalization that explains a body of facts or phenomena







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Can you answer 50 questions in 15 minutes?


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