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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 substance that reacts in a chemical change






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






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






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






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






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






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






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






9. Any substance that has a definite composition






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






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






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






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






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






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






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






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






18. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






21. 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






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






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






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






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






26. Distance between corresponding points on adjacent waves.






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






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






29. A negative ion.






30. Anything that has mass and takes up space






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






32. 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






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






34. The general term for any isotope of any element






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






36. A positive ion.






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






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






39. Lowest energy state of an atom.






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






41. Two quantities that have a constant mathematical product






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






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






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






45. The measurement system accepted worldwide

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






47. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






50. A measure of the gravitational pull on matter