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






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






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






4. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






7. Lowest energy state of an atom.






8. Having a uniform composition throughout






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






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






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






12. The arrangement of electrons in an atom






13. No two electrons in the same atom can have the same set of four quantum numbers






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






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






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






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






18. The energy change that occurs when an electron is acquired by a neutral atom.






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






20. Distance between corresponding points on adjacent waves.






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






22. Two quantities that have a constant mathematical product






23. A substance that is formed by a chemical change






24. Combination of all the forms of electromagnetic radiation.






25. The measurement system accepted worldwide

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






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






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






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






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






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






32. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






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






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






37. 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.






38. 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






39. Atoms of the same element that have different masses






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






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






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






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






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






45. A substance that reacts in a chemical change






46. The amount of space occupied by an object






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






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






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






50. Anything that has mass and takes up space