1		2						3
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				7		8						9				10									11
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	15		16																	17
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25								26
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	31											32	33
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			48																			49				50
						51													52		53
54																										55			56
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Across 2. whole numbers placed in front of reactants and products to balance the equation 8. The family name of the Group 1 elements 12. a bond formed when electrons are transferred 13. a negative particle that forms when an element gains electrons 16. the lowest possible temperature 17. acids and bases ______ each other when reacted. 18. A scale used to measure the acidity of a solution 19. a form of matter that has one phase 21. negative particles found outside the nucleus 22. The family name of the Group 17 elements 23. opposite of a synthesis reaction 25. protons + neutrons = 27. In Charles's Law, the ____ of a gas is held constant 28. energy of motion ____ energy 31. A + B --> AB is a ____ reaction. 32. number of protons 35. weighted average mass 36. a molecule that has an uneven distribution of electrons 37. completely ionizes releasing all of its hydroxide ions is a _____ base 39. discovered the nucleus of the atom with his famous gold-foil experiment 41. any element (except H) that is found left of the "zig-zag" line on the Periodic Table is classified as a ___ 44. Bases have a ____ feel. 46. an educated guess 53. Any substance that has a pH of 7 is _____ 54. in a neutralization reaction ____ and water are always formed 55. PV = nRT is the ______Gas Law 57. a bond form when electrons are shared 58. a substance made of two or more different kinds of atoms joined chemically 59. the element with the highest ionization energy and electronegativity on the Periodic Table

Down 1. a form of matter that has two or more phases 3. name of CaCl2 4. English schoolmaster who developed the Modern Atomic Theory 5. developed the first periodic table of the elements 6. atoms of the same element with different number of neutrons 7. In a ____ reaction, only carbon dioxide, water, and heat are formed in the presence of oxygen 9. 12 items = 1 dozen where 6.02 x 10E23 = 1 ____ 10. A rule of thumb for the solubility of solutes: "like dissolves _____" 11. to convert from mass to moles, divide the given mass by the ______ 14. ______ in a number are sometimes significant 15. The family name of the Group 18 elements 20. moles of solute divided by liters of solution 24. anything that has mass and takes up space 26. an electron that absorbs energy and moves up to higher energy levels is said to be in the ____ state 29. 1+ is the ___ on a sodium ion. 30. these are never changed when balancing equations 33. average kinetic energy 34. any one of the 18 vertical columns on the Periodic Table 37. solvent + solute = 38. a water molecule has this shape 40. branch of science that studies matter, its composition, structure, and interactions 42. a substance made of one kind of atom; cannot be broken down 43. 6.02 x 10E23 is called ____ number 45. Acids react with metals producing ______ gas. 47. s, p, d, and f are called the ______ of the principle energy level 48. the part of the experiment that is not changed 49. the temperature scale withoit negative numbers 50. a positive particle that forms when an element loses electrons 51. any one of the 7 horizontal rows on the Periodic Table 52. positive particles found in the nucleus 56. any substance that releases hydrogen ions into solution