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






2. A measure of the amount of matter






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






4. The measurement system accepted worldwide

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






6. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






9. Not having a uniform composition throughout






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






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






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






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






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






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






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






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






18. 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






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






20. The amount of space occupied by an object






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






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






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






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






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






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






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






28. Lowest energy state of an atom.






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






30. Mass is neither created nor destroyed duringordinary chemical or physical reactions






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






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






33. A vertical column of the periodic table






34. Two quantities that have a constant mathematical product






35. 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






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






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






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






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






40. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






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






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






45. A testable statement






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






47. A positive ion.






48. A substance that reacts in a chemical change






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






50. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together