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






2. Any substance that has a definite composition






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






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






5. A measure of the gravitational pull on matter






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






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






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






9. Something that has magnitude - size - or amount






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






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






12. A substance that reacts in a chemical change






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






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






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






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






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






18. Not having a uniform composition throughout






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






20. Distance between corresponding points on adjacent waves.






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






22. The arrangement of electrons in an atom






23. Two quantities that have a constant mathematical product






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






25. The 14 elements with the atomic numbers 90-103.






26. A vertical column of the periodic table






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






28. The energy change that occurs when an electron is acquired by a neutral atom.






29. Atoms of the same element that have different masses






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






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






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






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






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






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






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






37. 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






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






39. 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






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






41. A testable statement






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






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






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






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






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






47. The amount of space occupied by an object






48. A horizontal row of elements in the periodic table






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






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