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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. Distance between corresponding points on adjacent waves.






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






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






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






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






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






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






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






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






10. Atoms of the same element that have different masses






11. A measure of the gravitational pull on matter






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






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






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






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






16. Two quantities that have a constant mathematical product






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






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






19. 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






20. A positive ion.






21. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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22. One wave per second.






23. The arrangement of electrons in an atom






24. 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






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






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






27. 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.






28. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.






29. The amount of space occupied by an object






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






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






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






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






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






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






36. A vertical column of the periodic table






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






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






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






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






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






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






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






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






45. A measure of the amount of matter






46. 1/2 the distance between the nuclei of identical atoms that are bonded together.






47. The measurement system accepted worldwide

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






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






50. A substance that reacts in a chemical change