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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 measurement system accepted worldwide

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2. The arrangement of electrons in an atom






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






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






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






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






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






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






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






10. The amount of space occupied by an object






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






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






13. Distance between corresponding points on adjacent waves.






14. Combination of all the forms of electromagnetic radiation.






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






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






17. A negative ion.






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






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






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






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






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






23. Lowest energy state of an atom.






24. One wave per second.






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






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






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






28. Having a uniform composition throughout






29. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together






30. 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






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






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






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






34. A testable statement






35. Not having a uniform composition throughout






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






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






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






39. A horizontal row of elements in the periodic table






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






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






42. The elements of group 2 of the periodic table.






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






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






45. A substance that is formed by a chemical change






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






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






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






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






50. The number of protons in the nucleus of each atom of an element