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






2. A measure of the amount of matter






3. Any substance that has a definite composition






4. The mass of one mole of a pure substance






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






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






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






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






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






10. A substance that is formed by a chemical change






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






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






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






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






15. Anything that has mass and takes up space






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






17. The arrangement of electrons in an atom






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






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






20. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






23. The amount of space occupied by an object






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






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






26. The general term for any isotope of any element






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






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






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






30. The physical and chemical properties of the elements are periodic functions of their atomic numbers.






31. Distance between corresponding points on adjacent waves.






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






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






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






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






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






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






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






39. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.






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






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






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






43. Not having a uniform composition throughout






44. A vertical column of the periodic table






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






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






47. Something that has magnitude - size - or amount






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






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






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