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






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






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






4. A testable statement






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






6. A vertical column of the periodic table






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






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






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






10. A measure of the amount of matter






11. 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






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






13. A measure of the gravitational pull on matter






14. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






16. A positive ion.






17. Anything that has mass and takes up space






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






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






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






21. Any substance that has a definite composition






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






23. 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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24. A substance that reacts in a chemical change






25. A horizontal row of elements in the periodic table






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






27. The amount of space occupied by an object






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






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






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






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






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






33. One wave per second.






34. A high-temperature physical state of matter in which atoms lose their electrons






35. Distance between corresponding points on adjacent waves.






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






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






38. A negative ion.






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






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






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






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






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






44. 1/2 the distance between the nuclei of identical atoms that are bonded together.






45. The mass of one mole of a pure substance






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






47. The energy change that occurs when an electron is acquired by a neutral atom.






48. Atoms of the same element that have different masses






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






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