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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 property that depends on the amount of matter that is present






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






3. Combination of all the forms of electromagnetic radiation.






4. A vertical column of the periodic table






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






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






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






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






9. The arrangement of electrons in an atom






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






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






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






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






14. A positive ion.






15. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.






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






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






18. A horizontal row of elements in the periodic table






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






20. A characteristic that can be observed or measured without changing the identity of the substance






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






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






23. Having a uniform composition throughout






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






25. Atoms of the same element that have different masses






26. A vertical column of the periodic table






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






28. No two electrons in the same atom can have the same set of four quantum numbers






29. Distance between corresponding points on adjacent waves.






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






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






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






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






34. A substance that is formed by a chemical change






35. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






37. Any substance that has a definite composition






38. The emission of a continuous range of frequencies of electromagnetic radiation.






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






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






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






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






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






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






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






46. Something that has magnitude - size - or amount






47. Not having a uniform composition throughout






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






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






50. A measure of the amount of matter