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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 property that depends on the amount of matter that is present






2. The arrangement of electrons in an atom






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






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






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






6. Two quantities that have a constant mathematical product






7. A measure of the gravitational pull on matter






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






9. A measure of the amount of matter






10. Combination of all the forms of electromagnetic radiation.






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






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






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






14. Distance between corresponding points on adjacent waves.






15. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






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






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






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






21. The general term for any isotope of any element






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






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






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






25. Having a uniform composition throughout






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






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






28. Not having a uniform composition throughout






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






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






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






32. A testable statement






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






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






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






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






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






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






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






40. A vertical column of the periodic table






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






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






43. The mass of one mole of a pure substance






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






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






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






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






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






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






50. A substance that reacts in a chemical change