Chemical Equilibrium ------------------------------------------------- ------------------------------------------------- RESULTS AND DISCUSSION A. Iron-Silver Equilibrium In studying equilibrium between iron and silver‚ 0.10 M FeSO4 and 0.10 M AgNO3 were used. The balanced equation for the reaction is: FeSO4 (aq) + 2 AgNO3 (aq) ↔ Fe(NO3)2 (aq) + Ag2SO4 (s) It has a net equation of: Fe2+(aq) + Ag+(aq) ↔ Fe3+(aq) + Ag(s) This part of the experiment
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classes of chemical messengers. The human body contains chemical messengers. There are four groups of chemical messengers within the human body. Each chemical messenger are unique in their own way‚ having different functions throughout the body. The four groups are as follows in no specific order: Autocrine‚ paracrine‚ neurotransmitter‚ and endocrine. Neurotransmitter chemical messengers are let out by neurons where they are deposited into the synaptic cleft. Neurotransmitter chemical messenger
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1.1 INTRODUCTION Chemical bonding – the force of attraction between the two atoms Valence electron – the outer most shell electrons There are three types of chemical bonding i. Ionic bond: ________________________________________ ii. Covalent bond: _____________________________________ iii. Dative Covalent bond: _______________________________ 1.1.1 LEWIS DOT SYMBOL A shorthand to represent the valence electron of an atom. The element symbol
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Name: Jayanti Magar Title: Observations of Chemical Changes Date: 02/11/015 Pre Lab Questions: Use what you learned in this lab to answer the following questions. A. Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). How would you test this material for the presence of sodium bicarbonate? I would add hydrochloric acid (HCl) with carbon dioxide with NaHCO3‚ and it should bubble and form gas. B. You know what color phenolphthalein and bromothymol
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Chemical and Physical Changes in Matter Purpose: The purpose is to observe chemical and physical changes and to identify each. Procedure: Do experiments 1-8 as directed by the handout. Data and Results: Experiment | Observations | Type of Change | Supporting Evidence | 1 | -After a few seconds‚ yellow smoke was produced-Wood splinters are becoming black-Bottom part of test tube has black color on the sides-Some woods splinters have been burned to ash-Middle of test tube has yellow
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Performed: 02/05/2013 Submitted: 02/06/2013 Section 1: Title Physical and Chemical Properties Section 2: Purpose This labs is intended to help me investigate chemical and physical properties of pure substances. Section 3: Procedure In this experiment‚ I observed substances in their natural state‚ and recorded their apparent physical properties. I then tested the substances to determine how they react when their natural environments were altered. The pure substances were tested to see
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November 28‚ 2014 ! ! Physical and Chemical Properties! Purpose/Hypothesis:! • The purpose of this experiment is to investigate the chemical and physical properties of pure chemical substances. A property of a substance is some distinguishing characteristic. Some of the most common physical properties are color‚ odor‚ hardness‚ density‚ melting point‚ boiling point‚ and solubility in various solvents. For all of these properties‚ no chemical change takes place. Chemical properties describe the tendencies
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Chemical Weathering is the process of disintegration or decomposition of rocks due to chemical processes. It alters the intrinsic properties such as chemical structure‚ composition and density of the minerals that the rock is made up of. A rock’s susceptibility to Chemical Weathering depends on the stability of the minerals in it. Rock is composed of minerals that are generally quite stable at the time of formation. When there is variation in the surrounding environment‚ some minerals tend to
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问题 1 0.8 分 In cold climates‚ pot holes in the spring are most often caused by In cold climates‚ pot holes in the spring are most often caused by Oxidation Frost action Carbonation 标记此问题 问题 2 0.8 分 What type of tide is indicated by the orientation in the image below? What type of tide is indicated by the orientation in the image below? Neap tide Spring tide Storm tide Rip tide 标记此问题 问题 3 0.8 分 Using the photo below‚ what evidence is there that a
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Effective Treatments for Chemical Dependency Brenda Clark Argosy University Online Abstract This study was done to show if continuing aftercare treatment after leaving a drug and alcohol rehabilitation center will have less chance of relapsing‚ and more of a chance of staying sober and clean. Participants included twenty volunteers (7 females‚ 13 males). These participants were part of some type of inpatient or outpatient rehabilitation treatment center for addiction
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