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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. Distance between corresponding points on adjacent waves.






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






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






4. A substance that is formed by a chemical change






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






6. 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






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






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






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






10. Any substance that has a definite composition






11. The arrangement of electrons in an atom






12. The amount of space occupied by an object






13. The closeness of measurements to the correct or accepted value of the quantity measured






14. Combination of all the forms of electromagnetic radiation.






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






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






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






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






19. 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.






20. A measure of the amount of matter






21. 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






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






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






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






25. Not having a uniform composition throughout






26. A vertical column of the periodic table






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






28. A horizontal row of elements in the periodic table






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






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






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






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






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






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






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






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






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






38. The d-block elements are metals with typical metallic properties.






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






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






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






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






43. Having a uniform composition throughout






44. Two quantities that have a constant mathematical product






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






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






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






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






49. One wave per second.






50. Atoms of the same element that have different masses







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Can you answer 50 questions in 15 minutes?


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