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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 substance that has a definite composition






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






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






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






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






6. Anything that has mass and takes up space






7. Something that has magnitude - size - or amount






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






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






10. A horizontal row of elements in the periodic table






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






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






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






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






15. Two quantities that have a constant mathematical product






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






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






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






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






20. A measure of the gravitational pull on matter






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






22. Which suborbital. (Py - Px - Pz)






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






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






25. A measure of the amount of matter






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






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






28. A vertical column of the periodic table






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






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






31. Not having a uniform composition throughout






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






33. Atoms of the same element that have different masses






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






35. The arrangement of electrons in an atom






36. A testable statement






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






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






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






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






41. A vertical column of the periodic table






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






43. Lowest energy state of an atom.






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






45. 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






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






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






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






49. Distance between corresponding points on adjacent waves.






50. A negative ion.