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






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






3. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






6. Not having a uniform composition throughout






7. 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






8. Atoms of the same element that have different masses






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






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






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






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






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






14. A testable statement






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






16. A substance that is formed by a chemical change






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






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






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






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






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






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






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






24. The general term for any isotope of any element






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






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






27. Two quantities that have a constant mathematical product






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






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






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






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






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






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






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






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






36. A vertical column of the periodic table






37. Anything that has mass and takes up space






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






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






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






41. No two electrons in the same atom can have the same set of four quantum numbers






42. A horizontal row of elements in the periodic table






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






44. Any substance that has a definite composition






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






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






47. A measure of the gravitational pull on matter






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






49. Having a uniform composition throughout






50. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)






Can you answer 50 questions in 15 minutes?



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