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






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






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






4. A vertical column of the periodic table






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






6. A measure of the amount of matter






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






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






9. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data






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






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






12. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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13. The 14 elements with the atomic numbers 90-103.






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






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






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






17. A substance that is made from the atoms of two or more elements that are chemically bonded






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






19. A substance that has a fixed composition and differs from a mixture in that every sample of a given pure substance has exactly the same characteristic properties and composition






20. Distance between corresponding points on adjacent waves.






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






22. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation






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






24. The arrangement of electrons in an atom






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






26. A vertical column of the periodic table






27. Not having a uniform composition throughout






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






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






30. The elements of group 1 of the periodic table.






31. Any substance that has a definite composition






32. The measurement system accepted worldwide

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






34. Something that has magnitude - size - or amount






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






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






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






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






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






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






41. Having a uniform composition throughout






42. The closeness of a set of measurements of the same quantity made in the same way






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






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






45. Atoms of the same element that have different masses






46. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number






47. The general term for any isotope of any element






48. Any process that results in the formation of an ion.






49. 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






50. Combination of all the forms of electromagnetic radiation.