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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. Which suborbital. (Py - Px - Pz)






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






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






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






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






6. Any substance that has a definite composition






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






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






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






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






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






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






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






15. Lowest energy state of an atom.






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






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






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






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






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






21. A positive ion.






22. Not having a uniform composition throughout






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






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






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






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






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






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






29. An explanation of how phenomena occur and how data or events are related






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






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






32. A measure of the gravitational pull on matter






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






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






35. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated






36. Specify the properties of atomic orbitals and the properties of electrons in orbitals.






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






38. The measurement system accepted worldwide

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






40. Two quantities that give a constant value when one is divided by the other






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






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






43. Anything that has mass and takes up space






44. Distance between corresponding points on adjacent waves.






45. Something that has magnitude - size - or amount






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






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






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






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






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