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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 change in which one or more substances are converted into different substances






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






3. Distance between corresponding points on adjacent waves.






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






5. No two electrons in the same atom can have the same set of four quantum numbers






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






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






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






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






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






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






12. One wave per second.






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






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






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






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






17. A vertical column of the periodic table






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






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






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






21. 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






22. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated






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






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






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






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






27. A negative ion.






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






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






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






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






32. Lowest energy state of an atom.






33. Combination of all the forms of electromagnetic radiation.






34. A testable statement






35. A horizontal row of elements in the periodic table






36. Two quantities that have a constant mathematical product






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






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






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






40. A measure of the amount of matter






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






42. Anything that has mass and takes up space






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






44. The amount of space occupied by an object






45. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100






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






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






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






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






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