one another. Ancient Greek architects strove for precision and excellence of workmanship that has influenced the architecture of the past (Herringway 1). Greek architecture is distinguished by its three famous column designs known as the Doric‚ Ionic and Corinthian‚ which consist of decorated pediments with a focus on symmetry. The most perfect example of a Doric structure would be the Parthenon (Figure 1)‚ which is a temple dedicated to Athena located on the acropolis in Athens made 2400 years
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and meant for comfortable use‚ similar to The Parthenon (447-432 BCE)‚ located in Akropolis‚ Athens. At the top of the staircase there are four ionic columns; two on each side of the entrance. These columns rest on a small base that separates the shaft from the platform. There is no metepied or trigliff on this structure which leads us to believe it is Ionic. The shafts of the columns are thinner than Doric columns and are almost the full size of the building. They do not have flutes and fillets but
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The substances were identified according to their properties. Paraffin wax was identified as a non-polar covalent solid‚ sucrose is a polar covalent‚ sodium chloride was acknowledged as an ionic solid‚ tin is a metallic solid‚ sand is a network covalent‚ unknown#1 is a non-polar covalent solid‚ unknown#2 is an ionic solid‚ and unknown#3 is a polar covalent solid. These conclusions were made based on their physical and chemical properties. Introduction Solid substances are classified by the types
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Dot Formula November 8‚ 2013 I. Learning Objectives At the end of the sessions‚ the students of III- 15‚ and III – 10 must be able to: 1. Students will be able to interpret and draw Lewis dot diagrams for individual atoms and both covalent and ionic compounds. II. Subject Matter A. Topic: Chemical Bonding B. References 1. Department of Education‚ Culture and Sports. (1991). Science and Technology III. Quezon City: Book Media Press‚ pp. 273. 2. Estrella‚ Mendoza E. Chemistry.2003. Phoenix
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the following compounds in water. (aq = soluble (aqueous solution)‚ s = insoluble solid) a) CaCO3 __A____ b) Al(OH)3 __S____ c) Hg2Cl2 _S_____ d) Cu(NO3)2 __A____ 3. Write the complete ionic and net ionic equations for the following reaction: Pb(NO3)2 (aq) + 2 NaI (aq) PbI2 (s) + 2 NaNO3 (aq) Complete Ionic Equation:Pb+
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much more dangerous place. Although there are other types of compounds‚ for this lesson we will concentrate on ionic formulas‚ both binary and polyatomic and binary molecular formulas. Objectives: 1. Given a chemical formula‚ identify it as an ionic or molecular type of chemical compound‚ write the IUPAC name (no common names). 2. Given the IUPAC name of an ionic or molecular compound‚ write the chemical formula associated with it. Materials: Student Provides: The exercises
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while the total ionic equation was [Cu 2+ + 2NO3-](aq) + [2Na+ + 2OH-](aq) -> Cu(OH)2(s) + [2Na+ + 2NO3-](aq). The ionic equation can be gained by separating all soluble ionic compounds into their individual ionic components. This reaction can be defined as a metathesis
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Chloride 4‚700 uS/cm‚ Calcium Chloride 8‚400 uS/cm‚ Iron Chloride 1160 uS/cm and ocean water at 60‚000 uS/cm. The solutions containing Chlorine were significantly higher in conductivity than other solutions due to the reason that Chlorine can create ionic bonds and polar covalent bonds. However‚ there was no significant difference between the tap and pond water‚ yet a large difference in the distilled water without the trace minerals and carbon dioxide that dissolves when water touches
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1. Which of the following polyatomic ions have a 3-ionic charge? a. Phosphate b. Hydrogen carbonate c. Sulfate d. Hydroxide e. Nitrate 2. In which of the following is the metric unit paired with its correct abbreviation? a. Centimeter/km b. Kilogram/cg c. Millimeter/mL d. Microgram/mg e. Gram/gm 3. The number of electrons in an ion with 20 protons and an ionic charge of 2- is? a. 22 b. 18 c. 20 d. 16 e. 24 4. Which of the following is a measurement of mass in the metric system
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model accounts for the properties of metals like their conductivity‚ malleability‚ ductility‚ and low valuation. In ionic bonding‚ electrons are completely transferred from one atom to another. Ionic Bonds have another name‚ Electrovalent bond. These bonds form from electrostatic attraction between opposite ions of a chemical compound. Ionic bonding is the bond that creates ionic compounds. During the bond‚ some atoms are more stable when they lose or gain electrons to form ions. Since the numbers
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