1. INTRODUCTION 1.1 Introduction to Nestle Nestlé was founded in 1867 on the shores of Lake Geneva in Vevey, Switzerland and its first product was “Farine Lactée Nestlé”, an infant cereal specially formulated by Henri Nestlé to provide and improve infant nutrition. From its first historic merger with the Anglo-Swiss Condensed Milk Company in 1905, Nestlé has grown to become the world’s largest and most diversified food Company, and is about twice the size of its nearest competitor in the food
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* v · * t · * e | In chemistry, an amphoteric species is a molecule or ion that can react as an acid as well as a base.[1] The word is derived from the Greek word amphoteroi (ἀμφότεροι) meaning "both". Many metals (such as zinc, tin, lead, aluminium, and beryllium) form amphoteric oxides or hydroxides. Amphoterism depends on the oxidation state of the oxide. One type of amphoteric species are amphiprotic molecules, which can either donate or accept a proton (H+). Examples include amino
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NASA uses hydrogen fuel to launch the space shuttles. Credit: NASA Hydrogen is the simplest element. An atom of hydrogen consists of only one proton and one electron. It's also the most plentiful element in the universe. Despite its simplicity and abundance, hydrogen doesn't occur naturally as a gas on the Earth - it's always combined with other elements. Water, for example, is a combination of hydrogen and oxygen (H2O). Hydrogen is also found in many organic compounds, notably thehydrocarbons that
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Yeast Culture Lab BIO/315 April 22, 2014 Annissa Furr Yeast Lab Yeast, is a microscopic one celled organism that belongs to the group of organisms that is called fungi. They are single celled organisms that have a scientific name of Saccharomyces cerevisiae. Yeast can have many purposes but the main purpose of yeast is to help the fermentation process. Yeast is a living organism known as a fungus and it gets its energy source from sugar. Yeast can also be used in creating certain medical
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The Modern Development of Atomic Theory According to Democritus, “Nothing exists except atoms and empty space; everything else is opinion.” This conveys the controversy in scientific investigations made in defining a singular molecule. Since 460 BC, atomism has been an alternating concept of chemistry. Several significant scientists have contributed to this field profoundly. The modern development of the atomic theory is based on researches and discoveries of Democritus, John Dalton, J.J. Thomson
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the molecules, today we know: when electrons are slowed down they radiate off their lost in kinetic energy – and that is X-rays an electromagnetic wave + a stream of high energy photons traveling at the speed of light at the time nobody knows how the radiation originates and of what kind it was: wave or particles? Röntgen could in a long series of experiments showed: - X-rays penetrate all substances to some extend, elements of low atomic weight are especially transparent, elements of high
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(Schneider 336). When atoms combine it can causes a radiation which will affect molecules, cells and tissues. However there are some who think of biological effects of radiation on human body. The atoms unite through a process called ionization. So the biological effects begin with the result of radiation combining with the atoms which develops cells. There are several sources of radiation. In fact, It can be found everywhere. The homes which we live by contain amount of radioactive elements that decay into
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present among the (A) Molecules of water in liquid state (B) Atoms of helium in gaseous state at high temperature (C) Molecules of solid iodine (D) Molecules of hydrogen chloride gas 2. Acetone and chloroform are soluble in each other due to (A) Intermolecular hydrogen bonding (B) Ion-dipole interaction (C) Iinstantaneous dipole (D) All of the above 3. NH3 shows a maximum boiling point among the hydrides of VA group elements due to (A) Very small
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The process of cellular respiration is completed within the mitochondria. Chlorophyll is the green pigment found in green plants. Chlorophyll has the ability to trap the sun's radiant energy, and use it to rearrange those carbon dioxide and water molecules into glucose. 3. Why is photosynthesis important to you? It is important to the fact of how it uses solar energy and can provide us a new way of producing safe energy. Also,
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Activity 3: Properties of the elements and the periodic table 3.2, 3.3, 2.2 Unit 4: The structure of the atom Activity 4a: The nucleus, isotopes, and atomic mass 4.2, 4.3, 4.4 Activity 4b: The electrons and the shell model 4.2, 4.5-4.8 Unit 5: An introduction to ionic, covalent, and metallic bonding Activity 5: Conductivity and models of chemical bonding 3.4, 6.2-6.5 Unit 6: Exploring covalent compounds (molecules) Activity 6a: Molecules and lewis dot structures
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