The Chemical Basis of Life Chapter Objectives Opening Essay Explain why an understanding of chemistry and the properties of water are important aspects of biology. Elements‚ Atoms‚ and Compounds 2.1 Define matter‚ an element‚ a compound‚ and a trace element. 2.2 Explain how and why iodine‚ fluoride‚ and iron are added to the human diet. 2.3 Distinguish between the size‚ location‚ and properties of protons‚ electrons‚ and neutrons. 2.3 Define the atomic number and mass number of an atom
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Data Tables: Part 1: Chemicals Well No. Observations of the Reaction A. NaHCO3 + HCl 1A Bubbles appeared for 5 seconds. Now clear in color‚ no bubbles B. HCl + BTB 2A Turned from clear to yellow C. NH3 + BTB 3A Turned from clear to dark blue D. HCl + blue dye 4A Turned from clear to green E. Blue dye + NaOCl 5A Turned from blue to light blue with the 1 drop of HCl 6A Turned from blue->light blue->yellow->light yellow->clear‚ transparent F. NaOCl + KI 7A Turned from clear to Light yellow
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to Fe3+ ion. The percent of iron in the sample will be calculated from the amount of permanganate needed to oxidize fully all the Fe2+ ions. A solution of permanganate ion in sulfuric acid efficiently oxidizes Fe2+ to Fe3+ MnO4- + 5 Fe2+ + 8 H+ ( Mn2+ + 5 Fe3+ + 4 H20 The permanganate ion acts as its own indicator‚ as MnO4- is highly colored while Mn2+ is essentially colorless. The product of oxidation‚ the Fe3+ ion‚ is itself‚ slightly colored. To avoid any possible interference with
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1. Conjuctive/Associative Process It refers to a group’s effort to maintain and practice concensus‚ cooperation‚ unification and integration in a group. These are process that tend to create harmony or unity in society. They are a positive type of interaction and can bring progress and stability • Cooperation It is sharing the responsibility or the act of working together in order to achieve a common goal. It comes from the Latin word “Co” means together and “Operate” means to work. Characteristics
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Which of these are the main sources of regulations governing financial reporting in Australia? A) The Corporations Act‚ The AASB‚ CLERP B) Accounting standards‚ conceptual framework‚ stock exchange listing rules C) Government legislation‚ stock exchange listing rules‚ accounting standards D) AASB‚ FRC‚ government legislation. If there is a conflict between the provisions of the Framework and the requirements of the accounting standards A) The statements of accounting concepts prevail B) The
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Interatomic Bonding Tutorial Suggested Solutions 1. |Substances |Type of bonding |Type of structure | |H2O |Covalent |Simple molecular | |SiCl4 |covalent |simple molecular | |RbCl |ionic |giant lattice/ionic | |Si |covalent
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Chemistry Laboratory Report Classification of Chemical Substances Student: Saule Sadykova Lab Partner #1: Temirlan Atambaev Lab Partner #2: Almas Ospanbekov Instructor: Eugene Douglass Nazarbayev University Purpose The aim of this experiment is to investigate the properties of several substances with the purpose of determining whether they are molecular‚ ionic‚ macromolecular or metallic. Introduction Chemical substances could be named ionic‚ molecular or metallic substance‚ based
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Restorative Justice is a theory that emphasizes repairing the harm that has been caused by criminal behavior 1. (John Stuart Mill‚ Utilitarianism‚2010). Restorative justice is important because‚ it holds offenders accountable in meaningful and constructive ways‚ can contribute to a more satisfying experience of justice for victims and communities. There are various methods of restorative justice in which they are practiced; examples include victim offender mediation‚ conferencing‚ healing circles
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Introduction: Ovania Chemical Corporation is a specialty chemicals producer. Its core product is polyethylene terephthalate (PET) thermoplastic resins‚ which are used mainly to make containers and packages for bottled water‚ soft drinks‚ foods‚ and pharmaceuticals. Their main plant is located in Steubenville‚ Ohio. Though smaller than other chemical producers that produces globally‚ it has competed successfully in its niche of the US specialty chemical business. Recently advances in technology have
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The Effect of Chemicals on Fire In this lab we got to see the effect of chemicals on fire. We got to. See the flames change to different colors. The size of the colorful flame depended on how the Bunsen burner was turned on. I was sick when we were supposed to have the lab read‚ but I got it read the next day before class. During the lab I made sure to have the correct attired on: my goggles and apron. Ow ill go ahead and tell you five good safety precaution tips. One‚ never leave a lit
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