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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. Which way it spins. (up or down)






2. Not having a uniform composition throughout






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






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






5. A substance that is formed by a chemical change






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






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






8. Having a uniform composition throughout






9. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12






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






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






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






13. A vertical column of the periodic table






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






15. Emission of electrons from a metal when light shines on a metal.






16. The amount of space occupied by an object






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






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






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






20. The arrangement of electrons in an atom






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






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






23. 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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24. Any substance that has a definite composition






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






26. Distance between corresponding points on adjacent waves.






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






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






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






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






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






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






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






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






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






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






37. A positive ion.






38. The general term for any isotope of any element






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






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






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






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






43. Something that has magnitude - size - or amount






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






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






46. Combination of all the forms of electromagnetic radiation.






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






48. Lowest energy state of an atom.






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






50. 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