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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 mass of one mole of a pure substance






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






3. A vertical column of the periodic table






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






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






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






7. Any substance that has a definite composition






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






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






10. 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






11. Combination of all the forms of electromagnetic radiation.






12. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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13. Something that has magnitude - size - or amount






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






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






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






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






18. Lowest energy state of an atom.






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






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






21. The measurement system accepted worldwide

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






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






24. Atoms of the same element that have different masses






25. Distance between corresponding points on adjacent waves.






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






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






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






29. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






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






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






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






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






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






37. A substance that is formed by a chemical change






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






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






40. A measure of the amount of matter






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






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






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






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






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






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






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






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






49. The amount of space occupied by an object






50. 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