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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 pure substance made of only one kind of atom






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






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






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






5. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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6. A negative ion.






7. One wave per second.






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






9. 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






10. The mass of one mole of a pure substance






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






12. A substance that reacts in a chemical change






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






14. The d-block elements are metals with typical metallic properties.






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






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






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






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






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






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






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






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






23. Not having a uniform composition throughout






24. 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






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






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






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






28. The measurement system accepted worldwide

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






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






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






32. Any substance that has a definite composition






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






34. The ratio of mass to volume or mass divided by volume






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






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






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






38. The amount of space occupied by an object






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






40. A vertical column of the periodic table






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






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






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






44. Lowest energy state of an atom.






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






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






47. Something that has magnitude - size - or amount






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






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






50. A substance that is formed by a chemical change