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






2. A testable statement






3. 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






4. The total number of protons and neutrons in the nucleus of an isotope






5. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg






6. Distance between corresponding points on adjacent waves.






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






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






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






10. A substance that has a fixed composition and differs from a mixture in that every sample of a given pure substance has exactly the same characteristic properties and composition






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






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






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






14. 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.






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






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






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






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






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






20. The amount of space occupied by an object






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






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






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






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






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






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






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






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






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. Combination of all the forms of electromagnetic radiation.






32. The general term for any isotope of any element






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






34. Having a uniform composition throughout






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






36. A measure of the gravitational pull on matter






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






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






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






40. A measure of the amount of matter






41. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






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






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






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






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






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






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






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