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






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






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






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






5. A vertical column of the periodic table






6. Atoms of the same element that have different masses






7. Describes mathematically the wave properties of electrons and other very small particles.






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






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






10. Lowest energy state of an atom.






11. Anything that has mass and takes up space






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






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






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






15. A negative ion.






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






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






18. The general term for any isotope of any element






19. Not having a uniform composition throughout






20. A substance that reacts in a chemical change






21. A vertical column of the periodic table






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






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






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






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






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






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






28. A substance that is formed by a chemical change






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






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






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






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






33. A testable statement






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






35. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg






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






37. One wave per second.






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






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






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






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






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






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






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






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






46. Distance between corresponding points on adjacent waves.






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






48. Something that has magnitude - size - or amount






49. 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.






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