very useful to us because of their special properties. Reduction means removal of oxygen or gain of electrons. Carbon is a good chemical reducing agent because it readily combines with oxygen‚ but it is only useful for the metals below it in the Reactivity Series. In the process of electrolysis‚ the positive metal ions in the compound gain electrons to become atoms of the elements. METAL METHOD OF EXTRACTION Potassium Sodium Lithium Calcium Magnesium Aluminium K Na Li Ca Mg
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important in a variety of different industries. This post will look at some of the common uses of aluminum in the world today. Uses of Aluminum * Aluminum metal is very useful for packaging. It is used in cans and aluminum foil. * Aluminum borohydride is added to jet fuel. * Electrical wiring is sometimes made from aluminum or a combination of aluminum and copper. * Hydrogen gas‚ an important fuel in rockets‚ can be obtained by reacting aluminum with hydrochloric acid. * Super purity
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Compare the Effectiveness of Alcohol in Hand Disinfect Products Introduction Hands are regarded as a major source of transmitting infection.It has been estimated that there are not less than 10000 organisms per cm2 of normal skin. This include both nonpathogenic resident flora as well as pathogenic transient flora(Carter et al.‚ 2000). On the other hand‚ health care-associated infections constitute one of the greatest challenges of modern medicine (Mathur‚ 2011). Pandemic and avian
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in their physical properties in general‚ but they are not identical. Most of the metals are solids; few of them are liquids‚ such as mercury and cesium. Density of metals is not similar also. For example‚ sodium has density of 0.97g/cm3 while lead has density of 11.4g/cm3. Melting point of sodium is 98.0oC while for lead it is 327.6oC. Metals have the capability to lose electrons when they react with non-metals such as O2‚ halogens‚ water‚ acids and other metal cations. Metals react with non-metals
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IGCSE PRE-AICE CHEMISTRY 0620 OFFICIAL STUDY GUIDE Notes: To avoid any confusion concerning the symbol for litre‚ dm3 will be used in place of l or litre.Valence electrons are known as valency electrons for this test. Nature of Matter The states of matter are solid‚ liquid‚ and gas‚ in respective order of kinetic energy. State of Matter | Definite Volume | Definite Shape | Solid | Yes | Yes | Liquid | Yes | No | Gas | No | No | Diffusion:
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Executive Summary American Chemical Corporation’s Collinsville plant in Alabama is being sought by Dixon a speciality chemicals company. This plant mainly specialises in Sodium Chlorate production and fits well with Dixon’s strategy of supplying chemicals to paper and pulp industry. It would also complement Dixon’s existing product line. The plant costs $12million in investment and requires up to$ 2.25 million for upgrading to new technology. An in-depth investigation and analysis is conducted
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metals. Neither will dissolve in hydrochloric acid or sulfuric acid. The "oxidizing" acid nitric acid‚ HN03‚ is required. In acidic solutions the nitrate ion is an excellent oxidizer‚ and it will oxidize Ag(s) to Ag+(aq) and Cu(s) to Cu2+(aq). The reduction product is the gas NO. As the colorless nitrogen monoxide gas forms‚ it immediately reacts with the oxygen in the air to produce the orange-brown gas N02. The half-reactions for the oxidation of silver and copper by nitric acid are as follows:
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Tables of Normal Values (As of January 2013) Note: Values and units of measurement listed in these tables are derived from several resources. Substantial variation exists in the ranges quoted as “normal” and may vary depending on the assay used by different laboratories. Therefore‚ these tables should be considered as directional only. Some values (e.g. hormones) vary by gender‚ age‚ time of day and condition (e.g. pregnancy) so a text on endocrinology should be consulted for complete data
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1. Definitions: Omphalocele and gastroschisis represent two major congenital abdominal wall defects that are similar in presentation and appearance in the neonatal period‚ yet they have distinct differences that will affect treatments/outcomes. a. Omphalocele: an anterior abdominal wall defect at the base of the umbilical cord with herniation of abdominal contents through the umbilical ring. The herniated organs are covered by the peritoneal sac‚ amnion and Wharton’s jelly. With the large variation
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College‚ SL#710371 INDUSTRIAL CHEMISTRY What is this topic about? To keep it as simple as possible‚ (K.I.S.S.) this topic involves the study of: 1. THE CHEMICAL INDUSTRY 2. CHEMICAL EQUILIBRIUM 3. PRODUCTION OF SULFURIC ACID 4. PRODUCTION OF SODIUM HYDROXIDE 5. SOAP & DETERGENTS 6. THE SOLVAY PROCESS FOR Na2CO3 ...all in the context of the applications of Chemistry in human society. 1. THE CHEMICAL INDUSTRY The “Invisible” Industry Most people are familiar with some aspects of the production
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