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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 substance that is formed by a chemical change






2. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.






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






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






5. A property that depends on the amount of matter that is present






6. A testable statement






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






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






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






10. A vertical column of the periodic table






11. The mass of one mole of a pure substance






12. A vertical column of the periodic table






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






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






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






16. Having a uniform composition throughout






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






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






19. Any substance that has a definite composition






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






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






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






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






24. The arrangement of electrons in an atom






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






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






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






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






29. A measure of the amount of matter






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






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






32. An element that is a poor conductor of heat and electricity






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






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






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






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






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






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






39. One wave per second.






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






41. 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






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






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






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






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






46. The 14 elements with the atomic numbers 58-71.






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






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






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






50. A horizontal row of elements in the periodic table