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






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






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






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






5. The closeness of a set of measurements of the same quantity made in the same way






6. A substance that is formed by a chemical change






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






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






9. The amount of space occupied by an object






10. Distance between corresponding points on adjacent waves.






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






12. A vertical column of the periodic table






13. One wave per second.






14. Two quantities that have a constant mathematical product






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






16. The ratio of mass to volume or mass divided by volume






17. 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






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






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






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






21. Atoms of the same element that have different masses






22. A vertical column of the periodic table






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






24. 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






25. Something that has magnitude - size - or amount






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






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






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






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






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






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






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






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






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






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






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






37. A testable statement






38. Not having a uniform composition throughout






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






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






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






42. 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






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






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






45. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






48. The measurement system accepted worldwide

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






50. Combination of all the forms of electromagnetic radiation.