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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 property that does not depend on the amount of matter present






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






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






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






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






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






7. The general term for any isotope of any element






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






9. 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






10. The amount of space occupied by an object






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






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






13. A testable statement






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






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






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






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






18. Lowest energy state of an atom.






19. A change in which one or more substances are converted into different substances






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






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






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






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






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






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






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






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






28. 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






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






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






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






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






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






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






35. 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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36. Anything that has mass and takes up space






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






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






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






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






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






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






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






44. A horizontal row of elements in the periodic table






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






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






47. An outer main energy level occupied - in most cases - by 8 electrons






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






49. One wave per second.






50. A substance that is formed by a chemical change







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