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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 change in which one or more substances are converted into different substances






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






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






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






6. The measurement system accepted worldwide


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






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






9. 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






10. A negative ion.






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






12. Distance between corresponding points on adjacent waves.






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






14. 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






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






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






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






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






19. 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.


20. A substance that reacts in a chemical change






21. 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






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






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






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






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






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






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






28. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance


29. Having a uniform composition throughout






30. One wave per second.






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






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






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






34. The state of matter in which the substance has definite volume and definite shape






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






36. A positive ion.






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






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






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






40. A measure of the gravitational pull on matter






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






42. The arrangement of electrons in an atom






43. A measure of the amount of matter






44. Lowest energy state of an atom.






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






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






47. An electron occupies the lowest-energy orbital that can receive it






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






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






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