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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. Combination of all the forms of electromagnetic radiation.






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






3. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






5. The general term for any isotope of any element






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






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






8. Atoms of the same element that have different masses






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






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






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






13. Anything that has mass and takes up space






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






15. Distance between corresponding points on adjacent waves.






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






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






18. Any substance that has a definite composition






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






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






21. A measure of the gravitational pull on matter






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






23. The total amount of energy level an atom has.






24. A vertical column of the periodic table






25. 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






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






27. One wave per second.






28. A unit that is a combination of SI base units






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






30. Two quantities that have a constant mathematical product






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






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






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






34. The energy change that occurs when an electron is acquired by a neutral atom.






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






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






37. Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron - and all electrons in singly occupied orbitals must have the same spin state.

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






39. A substance that reacts in a chemical change






40. 1/2 the distance between the nuclei of identical atoms that are bonded together.






41. 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






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






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






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






45. Not having a uniform composition throughout






46. Lowest energy state of an atom.






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






48. A negative ion.






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






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







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Can you answer 50 questions in 15 minutes?


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