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






2. The amount of space occupied by an object






3. Combination of all the forms of electromagnetic radiation.






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






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






6. The arrangement of electrons in an atom






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






8. One wave per second.






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






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






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






12. Having a uniform composition throughout






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






14. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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15. The measurement system accepted worldwide

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16. A testable statement






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






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






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






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






21. Anything that has mass and takes up space






22. Lowest energy state of an atom.






23. 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






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






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






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






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






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






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






30. A vertical column of the periodic table






31. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.






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






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






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






35. 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.






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






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






38. Something that has magnitude - size - or amount






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






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






41. A measure of the gravitational pull on matter






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






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






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






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






47. A negative ion.






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






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






50. The mass of one mole of a pure substance