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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 physical change of a substance from one state to another






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






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






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






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






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






7. A substance that is formed by a chemical change






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






9. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






11. 1/2 the distance between the nuclei of identical atoms that are bonded together.






12. Two quantities that have a constant mathematical product






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






14. 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






15. A measure of the amount of matter






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






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






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






19. Not having a uniform composition throughout






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






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






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






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






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






25. The measurement system accepted worldwide

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26. The arrangement of electrons in an atom






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






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






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






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






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






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






33. A testable statement






34. The amount of space occupied by an object






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






36. A vertical column of the periodic table






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






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






39. A vertical column of the periodic table






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






41. A positive ion.






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






43. Atoms of the same element that have different masses






44. A substance that reacts in a chemical change






45. 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






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






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






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






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






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