Relative to electrons and electron states‚ what does each of the four quantum numbers specify? 4. Give the electron configurations for the following ions: P5+‚ P3-‚ Sn4+‚ Se2-‚ I- and Ni2+. 5. Potassium iodide (KI) exhibits predominantly ionic bonding. The K+ and I- ions have electron structures that are identical to which two inert gases? 6. Without consulting the periodic table‚ determine whether each of the electron configurations given below is an inert gas‚ a halogen‚ an alkali
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Organic Lab I No. 5-6 Separation of a Carboxylic Acid‚ a Phenol‚ and a Neutral Substance (Two-week lab) Reading Assignment 1) Chapter 7 • Introduction: P. 135- first paragraph • Theory and Techniques (p142-145) o Properties of Extraction Solvents o Mixing and Separating the Layers o Drying Agents o Part 1: The Technique of Neutral Liquid/Liquid Extraction The description is for dichloromethane-aqueous
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fill their outer shell. Part 2: Chemical Bonds Go to http://www2.nl.edu/jste/bond.htm 1. What is an ion? An ion is an atom that has gained or lost electrons. 2. What type of bonds do oppositely charged ions form? Oppositely charged ions form ionic bonds. 3. A sodium ion is different than a sodium atom. It has a positive charge. How many protons and electrons does a sodium atom have? Number of protons 11; Number of electrons 18 How about a chlorine ion? Number of protons 17; Number of electrons
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What are electrolytes? Chemically‚ electrolytes are substances that become ions in solution and acquire the capacity to conduct electricity. Electrolytes are present in the human body‚ and the balance of the electrolytes in our bodies is essential for normal function of our cells and our organs. Common electrolytes that are measured by doctors with blood testing include sodium‚ potassium‚ chloride‚ and bicarbonate. The functions and normal range values for these electrolytes are described below
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defect is observed in a crystal when a vacancy is created by an atom missing from a lattice site. Define the term ‘doping’. Why does conductivity of silicon increase with the rise in temperature. Name the crystal defect which lowers the density of an ionic crystal. [Ans. : Schottky defect] 23. What makes the crystal of KCl sometimes appear violet? [Hint : F-Centre] 24. 25. 26. Which point
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Richard Ortiz-Luis Sorenson‚ McClave 11 November 2012 Period 0 Examination of the Formation of Precipitates between Various Aqueous Solutions of Ionic Compounds 11/12/12 Background Information: A double replacement reaction is a chemical reaction that usually takes place between two aqueous ionic compounds. In the reaction‚ the cation of one compound replaces the other compound’s cation that yields two produce two new and different compounds. A precipitation reaction is a chemical reaction
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reaction‚ which consists of breaking and creating bonds‚ heat is either absorbed or released. In this lab‚ the reaction uses the disassociation of an ionic compound ammonium nitrate shown in the equation #1 below into ions. In order to disassociate ammonium nitrate into ions‚ energy is required. Both NH4 and NO3 are always soluble‚ therefore the ionic compound disassociates completely. Through equation #2‚ heat absorbed or released can be measured. In equation #2‚ q stands for the heat change in joules
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the ambitious building plan of the Hellenistic period. The Hellenistic temple replaced the Archaic temple‚ but it was never completed. The Altar of Zeus‚ Pergamon‚ Turkey‚ ca. 175 BCE. is the most Hellenistic architecture built. It is a monumental Ionic building with an altar and its detail of the gigantomachy freize and sculptures of defeated Gauls. This represents the Hellenistic art with the dramatic figures and intense scene full of tension. In this battle‚ there is Athena‚ Gaia‚ Alkyoneos‚ and
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The Propylaea of the Acropolis in Athens: The Project of Mnesicles In roughly 437 B.C.‚ 10 years after the beginning of the construction of the Acropolis and immediately after the Parthenon had been completed‚ Athens had began construction of a new site for their extremely revered sacred space known as the Acropolis‚ which was already home to great architectural blunders such as the Parthenon and Erechtheion. The entrance to this very commemorative site is referred to as the Propylaea‚ which is
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water are constants‚ so a new equilibrium expression called Ksp is derived Ksp = [Mn+]a [Xm-]b Note: The product of the concentration of ions of a sparingly soluble salt in water OTHER than at equilibrium is called the IONIC PRODUCT Example 1. AgCl [pic] Ag+ + Cl- Ksp = [Ag+][Cl-] Example 2 Cu(OH)2 [pic] Cu2+ + 2OH- Ksp = [Cu2+][OH-]2 Checkpoint A Write the Ksp expressions for the sparingly soluble salts below a. AgF b.
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