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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. Having a uniform composition throughout






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






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






4. Anything that has mass and takes up space






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






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






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






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






9. A substance that is formed by a chemical change






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






11. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg






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






13. A positive ion.






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






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






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






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






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






19. Combination of all the forms of electromagnetic radiation.






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






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






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






23. A vertical column of the periodic table






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






25. A measure of the amount of matter






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






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






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






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






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






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






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






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






34. The arrangement of electrons in an atom






35. 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






36. Lowest energy state of an atom.






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






38. The amount of space occupied by an object






39. Not having a uniform composition throughout






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






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






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






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






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






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






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






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






48. The mass of one mole of a pure substance






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






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