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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. The mass of one mole of a pure substance






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






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






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






5. 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






6. The general term for any isotope of any element






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






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






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






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






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






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






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






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






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






16. Lowest energy state of an atom.






17. A testable statement






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






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






20. Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron - and all electrons in singly occupied orbitals must have the same spin state.

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






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






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






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






25. Anything that has mass and takes up space






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






27. Distance between corresponding points on adjacent waves.






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






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






30. A vertical column of the periodic table






31. Atoms of the same element that have different masses






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






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






34. A positive ion.






35. A vertical column of the periodic table






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






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






38. A horizontal row of elements in the periodic table






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






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






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






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






43. A substance that reacts in a chemical change






44. A measure of the gravitational pull on matter






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






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






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






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






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






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