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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. Distance between corresponding points on adjacent waves.






2. A vertical column of the periodic table






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






4. The d-block elements are metals with typical metallic properties.






5. 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






6. A measure of the gravitational pull on matter






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






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






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






10. A substance that is formed by a chemical change






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






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






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






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






15. The arrangement of electrons in an atom






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






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






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






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






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






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






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






23. A horizontal row of elements in the periodic table






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






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






26. The measurement system accepted worldwide

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






28. Something that has magnitude - size - or amount






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






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






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






32. A characteristic that can be observed or measured without changing the identity of the substance






33. The mass of one mole of a pure substance






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






35. A substance that reacts in a chemical change






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






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






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






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






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






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






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






43. A positive ion.






44. 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






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






46. Not having a uniform composition throughout






47. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together






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






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






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