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






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






3. Having a uniform composition throughout






4. A horizontal row of elements in the periodic table






5. The d-block elements are metals with typical metallic properties.






6. A substance that reacts in a chemical change






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






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






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






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






11. Distance between corresponding points on adjacent waves.






12. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






15. A measure of the gravitational pull on matter






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






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






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






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






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






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






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






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






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






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






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






27. A blend of two or more kinds of matter - each of which retains its own identity and properties






28. A substance that is formed by a chemical change






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






30. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.






31. A measure of the amount of matter






32. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






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






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






37. The mass of one mole of a pure substance






38. Anything that has mass and takes up space






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






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






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






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






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






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






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






46. A testable statement






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






48. One wave per second.






49. 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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50. The arrangement of electrons in an atom







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