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






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






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






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






5. A measure of the amount of matter






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






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






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






9. A positive ion.






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






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






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






13. An atom or group of bonded atoms that has a positive or negative charge.






14. 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.






15. Atoms of the same element that have different masses






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






17. Something that has magnitude - size - or amount






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






19. The amount of space occupied by an object






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






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






22. The number of protons in the nucleus of each atom of an element






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






24. A measure of the gravitational pull on matter






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






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






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






28. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






30. A negative ion.






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






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






33. Anything that has mass and takes up space






34. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation






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






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






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






38. A substance that reacts in a chemical change






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






40. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






43. The general term for any isotope of any element






44. 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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45. A property that does not depend on the amount of matter present






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






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






48. One wave per second.






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






50. Distance between corresponding points on adjacent waves.