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






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






3. Mass is neither created nor destroyed duringordinary chemical or physical reactions






4. A change in a substance that does not involve a change in the identity of the substance






5. A horizontal row of elements in the periodic table






6. A vertical column of the periodic table






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






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






9. Combination of all the forms of electromagnetic radiation.






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






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






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






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






14. A negative ion.






15. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






18. Which way it spins. (up or down)






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






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






21. A vertical column of the periodic table






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






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






24. The mass of one mole of a pure substance






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






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






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






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






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






30. Having a uniform composition throughout






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






32. Lowest energy state of an atom.






33. Distance between corresponding points on adjacent waves.






34. A positive ion.






35. The 14 elements with the atomic numbers 58-71.






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






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






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






39. Any substance that has a definite composition






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






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






42. If two or more different compounds arecomposed of the same two elements - then the ratio of the masses of the secondelement combined with a certain mass of the first element is always a ratio ofsmall whole numbers






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






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






45. The amount of space occupied by an object






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






47. The general term for any isotope of any element






48. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






Can you answer 50 questions in 15 minutes?



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