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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 unit that is a combination of SI base units






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






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






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






5. The mass of one mole of a pure substance






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






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






8. Any substance that has a definite composition






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






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






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






12. Combination of all the forms of electromagnetic radiation.






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






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






15. A vertical column of the periodic table






16. The measurement system accepted worldwide

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






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






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






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






21. A vertical column of the periodic table






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






23. Atoms of the same element that have different masses






24. Not having a uniform composition throughout






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






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






27. A measure of the amount of matter






28. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12






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






30. Distance between corresponding points on adjacent waves.






31. The general term for any isotope of any element






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






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






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






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






36. A substance that is made from the atoms of two or more elements that are chemically bonded






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






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






39. A negative ion.






40. 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.






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






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






43. 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






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






45. Having a uniform composition throughout






46. An atom or group of bonded atoms that has a positive or negative charge.






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






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






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






50. A testable statement







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Can you answer 50 questions in 15 minutes?


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