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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especially in math‚ before adding a word that may affect the meaning or definition of the main word(s). Commutative property is: In math‚ the commutative property addresses only natural numbers. The commutative property also states the order of numbers‚ when added or multiplied‚ is not important. 1. What is the definition of the commutative property of addition? The commutative property of addition states the order of addends (natural numbers) does not change the sum. 2. Example 2 a.
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2 Chemical warfare What is Chemical Warfare: To understand chemical warfare you must first understand what a chemical agent is. A United Nations report from 1969 defines chemical warfare agents as " ... chemical substances‚ whether gaseous‚ liquid or solid‚ which might be employed because of their direct toxic effects on man‚ animals and plants ... ". This means basically that any chemical that is used to directly effect and harm a person‚ plant‚ or animal would be an act of chemical warfare
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EXPERIMENT NO. 9 CHEMICAL EQUILIBRIUM Audrey De Castro FCD3‚ Group 9‚ Ms. Sarah Sibug Kristine Tavares March 27‚ 2014 I. ABSTRACT Chemical equilibrium is mostly involved in industrial processes such as synthesis of ammonia
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Heather Schnicker 26 October 2012 Experiment # 4 (Lab 3) Properties of Gases PURPOSE The purpose of this experiment was to investigate and identify the chemical properties of the gases tested. DATA Gas | FLAME REACTION | GLOWING SPLINT | LIMEWATER REACTION | BROMOTHYMOL BLUE REACTION | Hydrogen | NO REACTION | | | | Oxygen | | BURNED BRIGHTER | | | Hydrogen & Oxygen | QUICK FLAME BURST | | | | Carbon Dioxide | | PUT THE FIRE OUT | NO REACTION | TURNED
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alive or not? Is a virus ‚ prion‚ virod‚ or a rock a living organism? What is life? Biologist have studied what makes organism alive for many years and have come to the conclusion the there are nine characteristics of life. Each characteristic has a property which applies to how and organism is alive. Life characteristics are as follows: order‚ metabolism‚ motility‚ responsiveness‚ reproduction‚ development‚ heredity‚ evolution‚ and adaptation. All of the characteristics of life together are what makes
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Chapter 1 Chemical Reactions and Equations Q.1. Why should magnesium ribbon be cleaned before burning in air ? Ans: Magnesium ribbon is a very reactive metal. When stored it reacts with oxygen to form a layer of magnesium oxide on its surface. This layer of magnesium oxide being a stable compound prevents further reaction of magnesium with oxygen. The magnesium is cleaned before burning in air to remove this layer so that the metal can be exposed to air properly. Q.2. Write the balanced
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The scientific method requires observations of nature to formulate and test hypotheses.[1] It consists of these steps:[2][3] Asking a question about a natural phenomenon Making observations of the phenomenon Hypothesizing an explanation for the phenomenon Predicting a logical consequence of the hypothesis Testing the hypothesis by an experiment‚ an observational study‚ or a field study Creating a conclusion with data gathered in the experiment‚ or forming a revised/new hypothesis and repeating
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Blind Peer Reviewed International Research Journal Publisher: Global Journals Inc. (USA) Online ISSN: 2249-4626 & Print ISSN: 0975-5896 Chemical and Physicochemical Properties of Moringa Flours and Oil By Abiodun O.A.‚ Adegbite J.A. & Omolola‚ A.O. Osun State Polytechnic‚ Nigeria Abstract - This work evaluates the chemical and physic-chemical properties of moringa seed flour and oil. The moringa seed were divided into two portions. The first portion was milled into flout while the second
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ACETIC ACID BY THE CHIYODA/UOP ACETICA™ PROCESS Aspen Model Documentation Index • Process Summary • About This Process • Process Definition • Process Conditions • Physical Property Models and Data • Chemistry/Kinetics • Key Parameters • Selected Simulation Results: Blocks Streams • References PEP Process Module 1 19 Aug 1999 SRI Consulting Process Summary This Aspen Plus model simulates the production of acetic acid by low pressure methanol
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