endothermic reaction happened everywhere around us. Basically exothermic and endothermic reaction is transfer energy to the surroundings and take in energy from the surroundings (BBC GCSE bitesize). If the reaction forward ，then is exothermic.If the reaction is the backwards ‚then is endothermic. When a reaction take place‚ the energy started to transfer from different object to the surroundings or take away energy from the surroundings. When temperature started to change. Exothermic Reaction An exothermic
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BIOLOGY 22 MODULE 1 – Chemical Basis of Life v2.0 * Levels of Organization – biological functions are ultimately based on the properties of atoms and molecules * Subatomic particles – neutrons‚ electrons‚ protons * Atoms * Compounds * Complexes of compounds * Organelles – bodies within cells that perform specific functions * Cell * Specific combination of organelles * Can metabolize and reproduce * Least elaborate living structure * Significance
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out of the four balanced chemical equations best represent the thermal decomposition of sodium bicarbonate. The guiding question will be answered with the outcome of the sodium bicarbonates thermal decomposition and it being plugged in into the four balanced chemical equations. John Dalton atomic theory explains two fundamental laws of chemistry which are the law of conservation of mass and the law of definite proportions. The atomic theory states that a chemical reaction is simply a rearrangement
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ZOOL 1 Lecture 3 1 2 ¡ ¡ ¡ ¡ Chemical substances that cannot be broken down to simpler forms by ordinary chemical reactions Atom Atomic number Atomic mass Compound Molecule Macromolecule 3 ¡ ¡ ¡ ELEMENT Oxygen Carbon Hydrogen Nitrogen Calcium Phosphorus Potassium Sulfur
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Atomic Structure Worksheet Name: Period: 1. Name the three particles of the atom and their respective charges are: a. b. c. 2. The number of protons in one atom of an element determines the atom’s ‚ and the number of electrons determines of an element. 3. The atomic number tells you the number of in one atom of an element. It also tells you the number of in a neutral atom of that element. The atomic
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Q_1 From the Exhibit 4‚ U.S. Frasch Sulphur Industry Prices and Profitability‚ 1940-1967‚ we can get the information about the variations in the return on invested capital earned by the industry over the several decades. In sulphur industry‚ the return on invested capital was around 15% from 1940 to 1945. From 1946‚ rate of return began to increase dramatically‚ starting from 16.2 %( 1945)‚ and reached 33.8% in 1950. This high rate of return kept for couples of years (1951-1955)‚ ranging from 29%
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Cost of equity and the WACC (see Table 1) Because US future risk premium ranges from 3% to 5%‚ the risk premium used in this case is 4%. In terms of unlevered beta of assets‚ we used average of the companies that is specialized for 21`only. Based on all above judgements‚ calculated cost of equity is 15.37%‚ and WACC is 12.01%. Calculation of NPVs Table 2 and Table 3 show the next 10 years cash flow of the Collinsville Plant without and with laminated graphite electrodes. Using the calculated
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REACTIONS OF HYDROCARBONS Vanessa P. Manibpel De La Salle University - Dasmariñas ABSTRACT Five substances namely Hexane‚ Eugenol‚ Unknown hydrocarbon 1‚ Unknown hydrocarbon 2‚ and Acetylene gas was used for the selective reactivity of hydrocarbons to functional group tests; Bayer’s test‚ Bromine test light‚ Bromine test dark‚ and Tollen’s test. In Bayer’s test‚ only Acetylene‚ Eugenol and Unknown hydrocarbon 2 reacted positively and the rest retain the purplish color of KMnO4. On the other hand
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“MOTIVATION” Filipino people are religious human being. We usually seek for guidance from our Lord in every decision we will made so in relation to that our teacher decided to have a speaker that can motivate us spiritually‚ emotionally and to enlighten us by a word of god. Fr. Joel Eslabra was the 1st invited speaker. He is a priest who is willing to share the word of God and also can give us inspiration. Fr. Joel starts his discussion with an inspirational lecture about the word of god presented
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Topic: 10-POINT AGENDAS OF PNOY REFLECTION: The Philippine Educational System is having some difficulties in resolving the different issues regarding the quality of education that we have today. Because of this‚ ‚His Excellency Benigno Simeon “Noynoy” Aquino our 14th President prioritized the upgrading of the educational system in our country. To give the Filipino people a good quality of education and for the Filipinos to be more globally competitive. One of his agenda is the
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