he terms “chemical accident” or “chemical incident” refer to an event resulting in the release of a substance or substances hazardous to human health and/or the environment in the short or long term. Such events include fires‚ explosions‚ leakages or releases of toxic or hazardous materials that can cause people illness‚ injury‚ disability or death. While chemical accidents may occur whenever toxic materials are stored‚ transported or used‚ the most severe accidents are industrial accidents‚ involving
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Chemical Reactions Chemical Change • reorganization • original substances form new substances with different formulas • may or may not involve a change of state • symbols used to describe chemical reaction are known as a chemical equation • Chemical equations do not have equal signs (=) they have an arrow Chemical Equations • Must follow the Law of Conservation of Matter • atoms can neither be created or destroyed during a chemical reaction • What
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Common Sense Common sense is the knowledge and thinking ability a person acquires through experience and from teachings passed on from others‚ and is used to deal with everyday life in appropriate manners. It is what a person relies on to tell them‚ generally‚ what is right or wrong‚ good or bad‚ and what is best for them in a given situation to sustain overall well-being. It reflects the thought process that is used when faced with possible uncertainty‚ and it relies heavily on memory. It enables
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Theme : Electrical Sector and Chemical Engineer a) “The Chemical Engineer – His Role in Electrical Manufacturing” by N.R. Maleady The article is about the role of chemical engineer in manufacturing transformers in the electrical manufacturing sector. The important components of the transformer are copper wire‚ cellulosic insulation‚ insulating varnish and dielectric liquid. Wire enamel or resin is the insulting structure for copper wire. The resin can either applied as a solution or in solventless
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Touch is the oldest and the most primitive sense that we have. It is the first sense we experience in the womb and the last one we lose before death. The organ that is most associated with the sense of touch is the skin. The uppermost part of the skin is called epidermis‚ which is as thick as a piece of paper‚ and it protects the inner part. Below the epidermis‚ there is dermis. Dermis is where the sense of touch is originated from. It is filled with many tiny nerve endings‚ which gives the person
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a good sense of humor is one of the most important human qualities Nowadays‚ people have a lot of problems in many fields of life. When people have a stressful day‚ they may experience headaches or sleeping difficulties. Some people agree that a good sense of humor is one of the most important human qualities while other people have different opinion that a good sense of humor is important for life . I personally believe that a good sense of humor is one of the most important human qualities.
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I am going to talk about how gold is made. I also noticed some physical and chemical changes happening in the video. My first Physical change I saw was when they drill in a certain spot‚ on the rock then they can put the pieces back together and pretend it did not happen because the molecules have not changed in the object‚ you are just breaking them into smaller pieces. So that is why it is a physical change. A chemical change I saw is when there is gold mixed with other materials like silver and
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A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electromagnetic force attraction between opposite charges‚ either between electrons and nuclei‚ or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are "strong bonds" such as covalent or ionic bonds and "weak bonds" such as dipole-dipole interactions‚ the London dispersion force and hydrogen bonding
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Discuss the statement. “Where you live defines your sense of Belonging” The statement‚ “Where you live defines your sense of Belonging” implies that the location and setting in which you live‚ defines your sense of belonging. This is not wrong in saying this‚ but it is not the only aspect to belonging. The ideas of belonging‚ or of not belonging‚ vary. They are shaped within personal‚ cultural‚ historical and social contexts. A sense of belonging can develop from the connections made with people
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CHEMICAL EQUILIBRIUM Reversible reactions and dynamic equilibrium Ammonia (NH3) is an important industrial chemical that is used in the manufacture of fertilisers. It is manufactured by reacting hydrogen with nitrogen. The reaction is said to be reversible and the conversion of reactants to products is never complete. N2 + 3H2 2NH3 A reversible reaction is a reaction which can take place in either direction When the concentrations of the reactants and product have become constant‚ a
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