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






2. The measurement system accepted worldwide


3. The energy required to remove one electron from a neutral atom of an element.






4. Two quantities that have a constant mathematical product






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






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






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






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






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






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






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






12. 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






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






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






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






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






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






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






19. A substance that reacts in a chemical change






20. The general term for any isotope of any element






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






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






23. 1/2 the distance between the nuclei of identical atoms that are bonded together.






24. 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.






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






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






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






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






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






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






31. A measure of the gravitational pull on matter






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






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






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






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






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






37. Not having a uniform composition throughout






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






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






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






41. 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






42. Atoms of the same element that have different masses






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






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






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






46. 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






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






48. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance


49. A horizontal row of elements in the periodic table






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