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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 a substance has neither definite volume nor 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. The mass of one mole of a pure substance






4. 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






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






6. Having a uniform composition throughout






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






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






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






10. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






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






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






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






16. A measure of the amount of matter






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






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






19. A substance that reacts in a chemical change






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






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






22. Specify the properties of atomic orbitals and the properties of electrons in orbitals.






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






24. A substance that is formed by a chemical change






25. The measurement system accepted worldwide

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






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






28. A negative ion.






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






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






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






32. The arrangement of electrons in an atom






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






34. Distance between corresponding points on adjacent waves.






35. An explanation of how phenomena occur and how data or events are related






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






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






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






39. A measure of the gravitational pull on matter






40. Any substance that has a definite composition






41. Anything that has mass and takes up space






42. A testable statement






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






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






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






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






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






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






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






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







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Can you answer 50 questions in 15 minutes?


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