The heat from the bunsen burner will remove the oxygen atoms from their positions in the ionic structure and will make the elemental forms of silver and oxygen (O2). The heat speeds up the process of breaking the attractions‚ because the electrons need to overcome an activation energy to break the bond‚ and therefore will force the ions away
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Ancient Greek History Why should one study the Ancient Greeks? There exist almost countless contributions that Greek culture has made to western society in the areas of art‚ literature‚ philosophy‚ drama‚ architecture and politics. Lasting visions of thought and inspiring intellect helped shaped today’s western culture with notions of democracy and personal freedoms. Greek scientists made revolutionary discoveries in medicine‚ mathematics‚ physics‚ and astronomy. It was the Greeks who‚ through
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Chemical Reactions and their Classifications 26 October 2012 Abstract: Ordinary laboratory ware was used to determine how many of what type of chemical reactions occurred. This yielded three decomposition reactions‚ four substitution reactions‚ and three metathesis reactions. Introduction There are many different types of chemical reactions in the study of chemistry; A composition reaction (also known as synthesis) is defined as the reaction that occurs when two single compounds combine in
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BCMB 311‚ Advanced Cell Biology‚ Fall 2012 EXAM 1 __________________________________Name True-False Questions (Write T or F next to the question‚ 1 point each) 1. A globular protein in the cytoplasm will normally be folded up in such a way that most of its non-polar sidechains are buried in the interior of the protein and most of its polar and charged side-chains are exposed on its surface. T 2. Alpha helices are stabilized by hydrogen bonds between amino acid side chains‚ whereas beta
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limestone and marble.1 Of post and lintel construction‚ these temples were typically rectilinear‚ and often supported by columns. These columns can be divided into three respective orders; Doric‚ Ionic and Corinthian‚ with each having their own specific attributes.2 The Greeks favoured the Doric and Ionic for their clean lines. 1. http://www.ehow.com/how_5526113_compare-contrast-greek-roman-architecture.html 2. Henri Stierlin‚ Greece; From Mycenae to the Parthenon‚ Taschen Press‚ First Edition
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an atom? What does the group/family on the periodic table tell you about a Group A element? Define molecule Define compound Define ionic bond and describe how they are formed Define ion Define cation Define anion Define polyatomic ion Define covalent bond and describe how they are formed Define electronegativity and describe how it is used to determine if a bond is ionic‚ polar covalent or nonpolar covalent Define polar covalent bond Define nonpolar covalent bond What kind of bonds are found within
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Purpose: To use electrochemistry to extract metals from ionic compounds in solution Procedure: -Start by attaching battery snap connector to a battery and fill beaker with between 100 and 200 mL of copper (II) sulfate solution -Connect clip to each of the nickel strips -Place nickel strips in copper sulfate solution without strips touching -Put one clip on the positive side of the battery and the second to the negative side. Observe -Switch clips to the opposite charged sides of the battery
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Ashley Huston ILab‚ Week #2 CATIONS AND ANION LAB Introduction The purpose of this lab is to demonstrate a double-replacement reaction of ionic compounds. In this experiment‚ you will combine two ionic compounds. Both compounds are soluble in water. If a response happens between these two compounds‚ then a precipitate will form because one of the two resultant compounds is not soluble in water. This is a hint that a reaction took place. Cations are positively charged ions that are attracted
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balanced equation of: 3 Fe(NO3)2 (aq) + K3Fe(CN)6 (aq) ↔ 3 Fe(CN)2 + K3Fe(NO3)6 It has a net ionic equation of: Fe2+(aq) + K3Fe(CN)6(aq) ↔ KFe(III)Fe(II)(CN)6(s) + 2K+(aq) To determine the presence of Fe3+‚ 0.10 M of KSCN was used. The product was a blood red solution. The reaction’s balanced equation is: Fe(NO3)2 (aq) + 2 KSCN (aq) Fe(SCN)2 (aq) + 2 KNO3 (aq) It has a net ionic equation of: Fe3+(aq) + SCN-(aq) → FeSCN2+(aq)
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occurring‚ solid‚ crystalline‚ inorganic substance‚ that has a specific chemical composition. 6. What is a compound? New substance that results from the bonding of two or more elements. 7. What is the difference between covalent and ionic bonds? Ionic Bonds are the bonding of two electrically charged atoms when one atom has transferred an electron to the other causing the two ions to become positively and negatively charged. Covalent
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