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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 measurement system accepted worldwide

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






3. A substance that reacts in a chemical change






4. A substance that is formed by a chemical change






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






6. Combination of all the forms of electromagnetic radiation.






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






8. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






10. Distance between corresponding points on adjacent waves.






11. An element that has some characteristics of metals and some characteristics of nonmetals






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






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






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






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






16. The 14 elements with the atomic numbers 90-103.






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






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






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






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. A measure of the amount of matter






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






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






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






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






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






27. Lowest energy state of an atom.






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






29. Not having a uniform composition throughout






30. One wave per second.






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






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






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






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






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






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






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






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






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






40. Anything that has mass and takes up space






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






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






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






44. A testable statement






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






46. A vertical column of the periodic table






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






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






49. Any substance that has a definite composition






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







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Can you answer 50 questions in 15 minutes?


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