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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 smallest unit of an element that maintains the properties of that element






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






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






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






5. 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






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






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






8. If two or more different compounds arecomposed of the same two elements - then the ratio of the masses of the secondelement combined with a certain mass of the first element is always a ratio ofsmall whole numbers






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






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






11. Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron - and all electrons in singly occupied orbitals must have the same spin state.

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






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






14. A measure of the gravitational pull on matter






15. A testable statement






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






17. The amount of space occupied by an object






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






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






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






21. 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






22. A substance that is formed by a chemical change






23. The mass of one mole of a pure substance






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






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






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






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






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






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






30. Anything that has mass and takes up space






31. Lowest energy state of an atom.






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






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






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






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






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






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






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






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






40. The measurement system accepted worldwide

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






42. A vertical column of the periodic table






43. A substance that reacts in a chemical change






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






45. Which suborbital. (Py - Px - Pz)






46. One wave per second.






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






48. Not having a uniform composition throughout






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






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