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






2. Combination of all the forms of electromagnetic radiation.






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






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






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






7. A positive ion.






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






9. A vertical column of the periodic table






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






11. 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






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






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






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






15. Not having a uniform composition throughout






16. Something that has magnitude - size - or amount






17. The measurement system accepted worldwide

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18. The mass of one mole of a pure substance






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






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






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






22. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.






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






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






25. The arrangement of electrons in an atom






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






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






28. The elements of group 17 of the periodic table.






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






30. Having a uniform composition throughout






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






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






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






34. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






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






38. Lowest energy state of an atom.






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






40. One wave per second.






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






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






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






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






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






46. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






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






50. 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







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