Chemical Formula Principles Chemical Formula is a system of chemical notation that was invented in 181 by John Jakob Berzelius. The system is based on the law of definite proportions”‚ states that all samples of a given chemical compound have the same elemental composition. It is also a way of expressing information about the proportions of atoms that constitute a particular chemical compound‚ using a single line of chemical element symbols‚ numbers‚ and sometimes also other symbols‚ such as
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Chemical Reactions Chemical Reactions Introduction In this paper you learn about the reactions that occur between backing soda and lemon juice. We will also describe what is occurring with the molecules on a molecular level. Lastly we will explain what chemical bonds are formed and or broken when lemon juice and backing soda. Observations of the Reactants When most people hear baking soda they think of the bright orange box sitting in their pantry or refrigerator soaking up the foul odors
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Chemical bonds are what make up the world. In bonds‚ elements are held together and form compounds that may have new physical and chemical properties. There are two main kinds of bonds‚ they ionic and covalent. In bonding the goal of the atoms involved is to reach a level of stability with less energy. In order to reach the epitome of stability‚ as in the case of noble gases‚ an atom strives to complete its outer shell. Either losing or gaining electrons may do this‚ which concludes in an ionic bond
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Dictionary of chemical formulas From Wikipedia‚ the free encyclopedia This is a list of chemical compounds with chemical formulas and CAS numbers‚ indexed by formula. This complements alternative listings to be found at list of inorganic compounds‚ list of organic compounds and inorganic compounds by element. Table of contents: A B C Ca-Cu D E F G H I K L M N O P R S T U V W X Y Z & [edit] Tables to be merged Inorganic: A B Ca-Cu G H I L M N O P S Organic: C C2 C3 C4 C5 C6 C7
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CHEMICAL WEATHERING Chemical weathering is a process of alteration of rocks of the Earth’s crust. is a chemical decomposition process. is brought out by atmospheric gases and moisture. End product has a different chemical composition and poorer physical constitution. The process: Chemical change in the nature of rock takes place in the presence of moisture containing many active gases such as CO2‚ N2‚ H2‚ and O2. Rocks are made up of minerals. All the minerals in a rock are not in
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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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Late one afternoon Morris Plant Manager of Diamond Chemicals Merseyside was discussing a capital project with her controller that Morris wanted to propose to senior management. The project consisted of a 9 million pounds expenditure to renovate and rationalize the polypropylene production line at the Merseyside plant in order to make up for the deferred maintenance and to exploit opportunities to achieve production efficiency. The proposed Capital Program Morris had assumed responsibility for the
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Drugs and Chemicals to be Avoided in G6PD Deficiency Drugs to be Avoided in G6PD Deficiency There are different types of G6PD deficiency‚ an individual need to know the type of G6PD that they have inherited because each types of G6PD deficiency react to drugs differently and some may not react to some of the drugs and chemicals listed here. This is not a comprehensive list there are drugs and chemicals that may also be harmful to those with G6PD deficiency that are not on this list an individual
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CHEMISTRY TOPIC 11 CHEMICAL CALCULATIONS CHEMICAL CALCULATIONS INTRODUCTION The first part of this ‘Chemical Calculations’ topic will help us to work out QUANTITIES involved in a reaction; For example‚ a manufacturer might want to know‚ How much ammonia will I produce from 20 tonnes of nitrogen in the Haber Process? To do these calculations you will need to be familiar with the term Ar (relative atomic mass)‚ Mr‚ Molar mass and Mole. Relative Atomic
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CHEMICALS IN COSMETICS (OVERVIEW) FACTSHEET A cosmetic is a substance or preparation that is designed to be used on any external part of the human body – including in the mouth – to change the odours of the body‚ to change its appearance‚ cleanse it‚ keep it in good condition‚ perfume it or protect it. Cosmetics include soap‚ shampoo‚ moisturiser‚ hair dye‚ perfume‚ lipstick‚ mascara and many other products‚ but do not include products regulated as therapeutic goods (medicines). Cosmetics are made
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