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






3. A substance that is formed by a chemical change






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






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






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






7. An arrangement of the elements in order of their atomic numbers so that the elements with similar properties fall in the same column or group.






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






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






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






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






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






13. The amount of space occupied by an object






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






15. Two quantities that have a constant mathematical product






16. The mass of one mole of a pure substance






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






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






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






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






22. An electron occupies the lowest-energy orbital that can receive it






23. A vertical column of the periodic table






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






25. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






28. Combination of all the forms of electromagnetic radiation.






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






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






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






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






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






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






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






36. A measure of the gravitational pull on matter






37. A vertical column of the periodic table






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






39. The measurement system accepted worldwide

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






41. The arrangement of electrons in an atom






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






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






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






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






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






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






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






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






50. Something that has magnitude - size - or amount