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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. A unit that is a combination of SI base units






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






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






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






5. The mass of one mole of a pure substance






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






7. A testable statement






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






9. Atoms of the same element that have different masses






10. A measure of the gravitational pull on matter






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






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






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






14. The arrangement of electrons in an atom






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






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






17. The measurement system accepted worldwide

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18. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






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






22. 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






23. Two quantities that have a constant mathematical product






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






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






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






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






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






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






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






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






32. The general term for any isotope of any element






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






34. A vertical column of the periodic table






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






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






37. Something that has magnitude - size - or amount






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






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






40. Anything that has mass and takes up space






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






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






43. 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






44. 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






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






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






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






48. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






50. A substance that reacts in a chemical change







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Can you answer 50 questions in 15 minutes?


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