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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. Not having a uniform composition throughout






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






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






4. A vertical column of the periodic table






5. 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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6. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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7. Two quantities that have a constant mathematical product






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






9. Anything that has mass and takes up space






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






11. The general term for any isotope of any element






12. The arrangement of electrons in an atom






13. Lowest energy state of an atom.






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






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






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






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






18. The mass of one mole of a pure substance






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






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






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






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






23. A change in which one or more substances are converted into different substances






24. 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.






25. Something that has magnitude - size - or amount






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






27. Any substance that has a definite composition






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






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






30. A substance that reacts in a chemical change






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






32. 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






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






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






35. The amount of space occupied by an object






36. No two electrons in the same atom can have the same set of four quantum numbers






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






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






39. A substance that is formed by a chemical change






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






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






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






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






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






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






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






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






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






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






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