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






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






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






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






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






6. Not having a uniform composition throughout






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






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






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






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






11. Two quantities that have a constant mathematical product






12. The measurement system accepted worldwide

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13. A physical change of a substance from one state to another






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






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






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






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






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






19. Any substance that has a definite composition






20. A measure of the amount of matter






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






22. The general term for any isotope of any element






23. A vertical column of the periodic table






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






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






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






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






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






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






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






31. A horizontal row of elements in the periodic table






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






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






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






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






36. The physical and chemical properties of the elements are periodic functions of their atomic numbers.






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






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






39. Atoms of the same element that have different masses






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






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






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






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






44. The total number of protons and neutrons in the nucleus of an isotope






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






46. A testable statement






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






48. Having a uniform composition throughout






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






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