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






2. Lowest energy state of an atom.






3. Distance between corresponding points on adjacent waves.






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






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






6. A measure of the amount of matter






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






8. A vertical column of the periodic table






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






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






11. Having a uniform composition throughout






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






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






15. Atoms of the same element that have different masses






16. The general term for any isotope of any element






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






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






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






20. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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21. The elements of group 1 of the periodic table.






22. A measure of the gravitational pull on matter






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






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






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






26. Mass is neither created nor destroyed duringordinary chemical or physical reactions






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






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






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






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






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






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






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






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






35. The measurement system accepted worldwide

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36. A substance that is formed by a chemical change






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






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






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






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






41. Not having a uniform composition throughout






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






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






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






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






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






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






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






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






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