First Exam Chem 2054 PDF

First Exam Chem 2054 Study online at https://quizlet.com/_gjye7x 1. Nucleus Core, heavy and contains protons and neutrons 2. Electrons Located outside, light and negative 3. u...

First Exam Chem 2054 Study online at https://quizlet.com/_gjye7x 1. Nucleus Core, heavy and contains protons and neutrons 2. Electrons Located outside, light and negative 3. u "Up" quark 4. d "Down" quark 5. What are atoms created from? Protons, neutrons and electrons 6. Mass Number Number of Protons and defines the element 7. Number of neutrons is calculated how? Mass number - atomic number = # of neutrons 8. Red, blue, black and clear color on the Red=liquid periodic table blue=gas black=solid clear=sythic 9. Atomic mass the mass of an element's atoms is listed in the periodic table as an average value based on the relative abundance of the element's isotopes 10. Isotopes Same number of protons but a different num- ber of neutrons unstable and releases as gamma rays 11. combustion analysis Determine elemental composition to obtain empirical formula 12. How many types of chemical formulas 2; Empirical formula and Molecular formula are there? 13. Periods Horizontal rows on the periodic table 1/7  First Exam Chem 2054 Study online at https://quizlet.com/_gjye7x 14. Groups Vertical columns on the periodic table 15. Metal properties Shiny, malleable, ductile, conductive, and some- times magnetism 16. Nonmetals dull, brittle, poor conductors 17. Metaliods Conduct heat and electricity and contains some properties of metals and nonmetals 18. Ions Lose or gain electrons 19. Cations Positively charged ions are formed by losing electrons; more protons than electrons (+) 20. anions negatively charged ions, formed by gaining electrons; more electrons than protons (-) 21. covalent bond Sharing bonds 22. ionic bond Formed when one or more electrons are trans- ferred from one atom to another 23. Molecular compound properties -Share electrons -Weak bonds -Low Melting Points -Low boiling points -Insulators -Any state at room temperature -Messy 24. Ionic compounds properties - High melting points - High boiling points 2/7  First Exam Chem 2054 Study online at https://quizlet.com/_gjye7x - Can dissolve easily in water -Form a lattice 25. Atomic elements elements by itself 26. Molecular elements more than one element 27. Monoatomic anions end in -ide 28. Fluorine F-;fluride 29. Chlorine Cl-; chloride 30. Bromine Br- ;Bromide 31. Iodine I- ;iodine 32. Oxygen O2- ;oxide 33. Sulfur S2-;sulfide 34. Nitrogen N3- ;nitride 35. Phosphorus P3- ;phosphide 36. Anion - Charge 37. Cation + Charge 38. Cations are named (blank) in naming First 39. Ionic compounds with cations of vari- Name of cation(metal) + charge of cation in able charges (naming) Roman numerals + base name of anion (nm) 40. Compunds should always equal ZERO!!! 3/7  First Exam Chem 2054 Study online at https://quizlet.com/_gjye7x 41. Romans numerals are for (blank) Variable charges only 42. Molecular compounds are made from Nonmetals + nonmetals 43. Molecular compounds are made of Prefix of 1st element (excluding mono) + name of 1st element + prefix of 2nd element + base name of 2nd with ide 44. Example BF3 Boron + Trifluoride 45. PCl5 Phosphorus Pentachloide 46. CrBr3 Chromium (III) Bromide 47. Au2S3 gold (III) sulfide 48. A fixed metal element contains..... No roman numerals 49. Formula mass the sum of the average atomic masses of all the atoms represented in the formula of any molecule, formula unit, or ion 50. Avogrado's number (mole) 6.022x10^23 atoms/particles 51. Molar mass The mass and the amount of substance of any sample of the compound. 52. Variable charge of Cr Cr3+ or Cr6+ 53. Variable charge of Mn Mn2+ 54. Variable charge of Fe Fe2+ or Fe3+ 55. Variable charge of Co Co2+ 4/7  First Exam Chem 2054 Study online at https://quizlet.com/_gjye7x 56. Variable charge of Ni Ni2+ 57. Variable charge of Cu Cu+ or Cu2+ 58. Variable charge of Zn Zn2+ 59. Variable charge of Ag Ag+ 60. Variable charge of Cd Cd2+ 61. Variable charge of Pt Pt2+ 62. Variable charge of Au Au+ or Au3+ 63. Variable charge of Hg Hg2 2+ or Hg2+ 64. NH4+ Ammonium 65. CH3COO- Acetate 66. OH- Hydroxide 67. NO3- Nitrate 68. NO2- Nitrite 69. MnO4- Permanganate 70. Cr2072- Dichromate 71. CO32- Carbonate 72. HCO3- Bicarbonate 73. PO43- Phosphate 5/7  First Exam Chem 2054 Study online at https://quizlet.com/_gjye7x 74. CIO3- Chlorate 75. CIO4- Perchlorate 76. SO42- Sulfate 77. SO32- Sulfite 78. When the element is #+, does it gain or Electrons are lost lose electrons and increase what? 79. When the element is #-, does it gain or Electrons gain in quantity lose electrons and increase what? 80. Molarity Formula Amount of solute (in moles) / volume of solution (in liters) 81. Solution A homogeneous mixture of two or more sub- stances 82. Solvent the substance in which the solute dissolves (the bigger amount) 83. Solute A substance that is dissolved in a solution (the smaller amount) 84. Molarity definition the amount of solute, in moles, per liter of solu- tion 85. The formula for dilution of molarity? M1V1=M2V2 86. What does each one mean? M1 = molarity of the concentrated solution V1 = volume of the concentrated solution M2 = molarity of the diluted solution V2 = volume of the diluted solution 6/7 First Exam Chem 2054 Study online at https://quizlet.com/_gjye7x 7/7