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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 measure of the amount of matter






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






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






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






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






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






7. A vertical column of the periodic table






8. Two quantities that have a constant mathematical product






9. A horizontal row of elements in the periodic table






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






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






12. Anything that has mass and takes up space






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






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






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






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






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






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






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






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






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






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






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






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






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






26. Atoms of the same element that have different masses






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






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






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






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






31. Something that has magnitude - size - or amount






32. 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






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. Lowest energy state of an atom.






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






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






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






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






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






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






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






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






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






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






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






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






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






48. A negative ion.






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






50. The mass of one mole of a pure substance







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