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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 change in a substance that does not involve a change in the identity of the substance






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






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






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






5. Two quantities that have a constant mathematical product






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






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






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






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






10. Any substance that has a definite composition






11. 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






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






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






14. 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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15. 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






16. Distance between corresponding points on adjacent waves.






17. Not having a uniform composition throughout






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






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






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






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






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






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






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






25. A substance that is formed by a chemical change






26. The general term for any isotope of any element






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






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






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






30. A 3D region around the nucleus that indicates the probable location of an electron.






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






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






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






34. One wave per second.






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






36. An arrangement of the elements in order of their atomic numbers so that the elements with similar properties fall in the same column or group.






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






38. A testable statement






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






40. 1/2 the distance between the nuclei of identical atoms that are bonded together.






41. Anything that has mass and takes up space






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






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






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






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






46. The physical and chemical properties of the elements are periodic functions of their atomic numbers.






47. A vertical column of the periodic table






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






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






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







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Can you answer 50 questions in 15 minutes?


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