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






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






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






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






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






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






7. A negative ion.






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






9. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






11. The 14 elements with the atomic numbers 90-103.






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






13. If two or more different compounds arecomposed of the same two elements - then the ratio of the masses of the secondelement combined with a certain mass of the first element is always a ratio ofsmall whole numbers






14. Not having a uniform composition throughout






15. Having a uniform composition throughout






16. 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






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






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






19. A vertical column of the periodic table






20. Distance between corresponding points on adjacent waves.






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






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






23. Something that has magnitude - size - or amount






24. The d-block elements are metals with typical metallic properties.






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






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






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






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






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






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






31. The amount of space occupied by an object






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






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






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






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






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






38. Lowest energy state of an atom.






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






40. A substance that reacts in a chemical change






41. Specify the properties of atomic orbitals and the properties of electrons in orbitals.






42. A vertical column of the periodic table






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






44. The arrangement of electrons in an atom






45. The measurement system accepted worldwide

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






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






48. Any substance that has a definite composition






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






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