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






2. Distance between corresponding points on adjacent waves.






3. A testable statement






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






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






6. 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






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






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






9. 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.






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






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






12. Any substance that has a definite composition






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






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






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






16. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated






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






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






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






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






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






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






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






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






25. Not having a uniform composition throughout






26. A substance that is formed by a chemical change






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






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






29. 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






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






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






32. The amount of space occupied by an object






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






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






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






36. The general term for any isotope of any element






37. A measure of the gravitational pull on matter






38. An electron occupies the lowest-energy orbital that can receive it






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






40. The state of matter in which the substance has definite volume and definite shape






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






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






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






44. Something that has magnitude - size - or amount






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






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






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






48. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.






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






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