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






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






3. 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.






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






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






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






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






8. Combination of all the forms of electromagnetic radiation.






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






10. A substance that reacts in a chemical change






11. 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






12. 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.


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






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






15. Two quantities that have a constant mathematical product






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






17. Having a uniform composition throughout






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






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






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






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






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






23. The amount of space occupied by an object






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






25. A positive ion.






26. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance


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






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






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






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






31. A vertical column of the periodic table






32. Distance between corresponding points on adjacent waves.






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






34. Something that has magnitude - size - or amount






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






36. A negative ion.






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






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






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






40. The arrangement of electrons in an atom






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






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






43. 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






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






45. Not having a uniform composition throughout






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






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






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






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






50. A measure of the amount of matter