Oxidation & Reduction I. Metal-Metal Ion Displacement II. Halogen Displacement Reactions INTRODUCTION A series of experiments had been conducted to determine the order of displacement strengths of the metals and halogen chosen for the experiments. A displacement reaction is a reaction in which one element(metal or non-metal) displaces another element(metal or non-metal) from its salt solution. In the displacement reaction of metals‚ the more electropositive metal will displace the less
Free Oxidizing agent Chlorine Hydrogen
some benefits of using halogen light bulbs in lighting fixtures for filming? – The benefits of using the halogen lights could be that they can last longer and are much brighter than regular light bulbs. 2. Describe in detail how to create the effect of light coming through a window onstage in a theatrical production. – A metal cutout will create an effect of a light shining through a window‚ so that it doesn’t look like a straight up spotlight on stage. 3. What is hard light? How does it differ from
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What is a reactive attitude? What bearing does it have on the problem of free will? A theory that has attacked the validity of discussions on freedom in modern philosophy is determinism. In these discussions‚ questions have arisen as to how the truth or falsity of this theory should affect our lives. In this essay I will discuss the formal implications‚ illustrated by Peter Strawson‚ that come about from this. This will mean discussion of our reactive attitudes on: our moral considerations and on
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Sierra Silva‚ Renata Beyer Perch Chemistry 171 20 October 2014 Periodicity of the Halogens Goal: To design and carry out an experiment that will give enough data to rank the three halogens from highest to lowest electron affinity. Background: The three aqueous solutions given in this experiment are Iodine‚ Bromine‚ and Chlorine; they are all non-polar and dissolve easily in Hexane which is also non-polar. When there is a color change in a mixture that means that it reacted and that there was a double
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Chemical Prperties of Metals Most metals are chemically reactive‚ reacting with oxygen in the air to form oxides over changing timescales (for example iron rusts over years and potassium burns in seconds). The alkali metals react quickest followed by the alkaline earth metals‚ found in the leftmost two groups of the periodic table. Examples: 4Na + O2 → 2Na2O (sodium oxide) 2Ca + O2 → 2CaO (calcium oxide) 4Al + 3O2 → 2Al2O3 (aluminium oxide) The transition metals take much longer to
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Short Notes on Environment versus Heredity‚ Optimist versus Pessimistic‚ Reactive vs Proactive Environment versus Heredity this refers to the same as nature versus nurture. Nature refers to heredity: the genetic makeup or "genotypes" referring to information that is encoded and imprinted in a person’s Deoxyribonucleic acid otherwise called DNA. The notion of nature‚ therefore‚ refers to the biologically prescribed tendencies and capabilities individuals possess‚ which may unfold themselves throughout
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halogen element Any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F)‚ chlorine (Cl)‚ bromine (Br)‚ iodine (I)‚ astatine (At)‚ and element 117 (temporarily named ununseptium [Uus]). They were given the name halogen‚ from the Greek roots hal- (“salt”) and -gen (“to produce”)‚ because they all produce sodium salts of similar properties‚ of which sodium chloride—table salt‚ or halite—is best known. Because of their great
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Properties and Behavior of Gases General Properties of Gases Properties Solids Shape Definite shape Volume Definite volume Particles and movement Compressibility Density Liquids Gases No definite shape No definite shape Definite volume No definite volume Particles are Particles are close close together together and and may vibrate move randomly in place Incompressible Slightly compressible Particles are far apart and move randomly Very compressible
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Metals & Non-Metals Metals: Good conductors of heat and electricity. Have shining luster. Malleable (this means that they can be hammered or distorted). Ductile (this means that they can be drawn into wires). Most have high melting and boiling points. Are sonorous (give out sound when beaten). Usually solid at room temperature. An exception to this is mercury‚ which is liquid in nature. Examples: Aluminum‚ Gold‚ Copper‚ Silver‚ Sodium‚ Potassium‚ Mercury. Corrode or oxidize in
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Inert Gases Inert Gases and Characteristics • The inert gases are obtained by fractional distillation of air. • They are often used aboard chemical tankers and product carriers (smaller vessels). • Helium‚ Neon‚ Argon‚ Krypton‚ Xenon‚ Radon and are inert gases. • Duplet (Helium) or Octet • Full valence shell • • • • Weak interatomic force Very low melting and boiling points. Monatomic gases under standard conditions Helium has several unique qualities when compared with
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