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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 definite volume and definite shape






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






17. A positive ion.






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






19. A horizontal row of elements in the periodic table






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






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






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






23. 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






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






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






26. 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






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






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






29. 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.






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






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






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






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






34. The mass of one mole of a pure substance






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






36. A negative ion.






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






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






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






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






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






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






43. Distance between corresponding points on adjacent waves.






44. Anything that has mass and takes up space






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






46. Not having a uniform composition throughout






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






48. Two quantities that have a constant mathematical product






49. The amount of space occupied by an object






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