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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. Which way it spins. (up or down)






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






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






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






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






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






7. A substance that reacts in a chemical change






8. Anything that has mass and takes up space






9. A measure of the amount of matter






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






11. Something that has magnitude - size - or amount






12. The ratio of mass to volume or mass divided by volume






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






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






15. Distance between corresponding points on adjacent waves.






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






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






18. The amount of space occupied by an object






19. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






22. Not having a uniform composition throughout






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






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






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






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






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






28. Any substance that has a definite composition






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






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






31. 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






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






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






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






35. Combination of all the forms of electromagnetic radiation.






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






37. A vertical column of the periodic table






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






39. The arrangement of electrons in an atom






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






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






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






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






44. 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.






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






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






47. A vertical column of the periodic table






48. Atoms of the same element that have different masses






49. A testable statement






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