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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 total amount of energy level an atom has.






2. Something that has magnitude - size - or amount






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






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






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






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






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






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






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






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






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






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






13. A substance that is formed by a chemical change






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






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






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






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






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






20. A measure of the amount of matter






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






22. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






24. A vertical column of the periodic table






25. 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






26. Not having a uniform composition throughout






27. 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






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






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






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






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






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






33. The general term for any isotope of any element






34. The mass of one mole of a pure substance






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






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






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






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






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






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






41. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data






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






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






44. The amount of space occupied by an object






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






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






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






48. The arrangement of electrons in an atom






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






50. 1/2 the distance between the nuclei of identical atoms that are bonded together.