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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 emission of a continuous range of frequencies of electromagnetic radiation.






2. Not having a uniform composition throughout






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






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






5. Having a uniform composition throughout






6. Something that has magnitude - size - or amount






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






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






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






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






11. Lowest energy state of an atom.






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






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






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






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






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






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






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






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






20. The measurement system accepted worldwide

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






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






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






24. A substance that is formed by a chemical change






25. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






27. The mass of one mole of a pure substance






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






29. Any substance that has a definite composition






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






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






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






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






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






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






36. The arrangement of electrons in an atom






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






38. A positive ion.






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






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






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






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






43. 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






44. A testable statement






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






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






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






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






49. A measure of the gravitational pull on matter






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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