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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 ratio of mass to volume or mass divided by volume






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






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






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






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






7. Atoms of the same element that have different masses






8. A negative ion.






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






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






11. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number






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






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






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






15. 1/2 the distance between the nuclei of identical atoms that are bonded together.






16. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






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






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






21. The measurement system accepted worldwide

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22. 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






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






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






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






26. The general term for any isotope of any element






27. The elements of group 1 of the periodic table.






28. Any substance that has a definite composition






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






30. Having a uniform composition throughout






31. Something that has magnitude - size - or amount






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






33. Anything that has mass and takes up space






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






35. 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






36. Lowest energy state of an atom.






37. Combination of all the forms of electromagnetic radiation.






38. A measure of the gravitational pull on matter






39. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100






40. One wave per second.






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






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






43. Not having a uniform composition throughout






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






45. The arrangement of electrons in an atom






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






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






48. 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






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






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







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Can you answer 50 questions in 15 minutes?


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