'2 fe 2' presentation slideshows

Saturday Study Session 1 Theme of the Class Enthalpy

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???? ??????? Spectrophotometry

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Chapter 19: Chemical Thermodynamics

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Introduction to Reactions

Introduction to Reactions. Chemical Equation. Reactants ? Products Fe + O 2 ? Fe 2 O 3 A catalyst is a substance that speeds up the reaction but is not changed by it. It is neither a reactant or a product. Signs of a Reaction. Release of a gas

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MATTER

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Stoichiometry

Stoichiometry. A measure of the quantities consumed and produced in chemical reactions. Atomic Mass. Is measured in either amu or in grams / mol 1 amu is exactly 1/12 the mass of a Carbon - 12 atom so it serves as the standard for all other atoms

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The Joy of

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Redox Reactions

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Starter

Starter. 2. Complete the electronic arrangement of the Co 2 + ion. (1 mark) [Ar] 3. Explain why complex ions with partially filled d sub-levels are usually coloured. ( 2 marks) 4. What is meant by the term co-ordinate bond ?. Starter.

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Chapter 5 Chemical Reactions and Quantities

Chapter 5 Chemical Reactions and Quantities. 5.8 Mass Calculations for Reactions. Steps in Finding the Moles and Masses in a Chemical Reaction. Moles to Grams. Suppose we want to determine the mass (g) of NH 3 that can form from 2.50 moles N 2 .

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A = Ca, Sr , Ba

Superconductivity in system A Fe 2 ( As 1-x P x ) 2. Fe. As. A = Ca, Sr , Ba. Evolution from non-Fermi- to Fermi-liquid transport via isovalent doping in BaFe 2 (As 1? x P x ) 2 superconductors Kasahara et. al., Phys. Rev. 81, 184519(2010). Dulguun Tsendsuren Kitaoka Lab.

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Test 4 Review

Test 4 Review. Naming Formulas Percent composition Empirical formulas Balancing Equations Types of Reactions Activity Series. Molecular Compounds. A molecule is held together by covalent bonds . Valence electrons are shared . Between non-metals i.e. H 2 O, CO 2 , O 2 , NO.

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#42 The equation for the formation of water from its elements,

#42 The equation for the formation of water from its elements, H 2 (g) + O 2(g)  H 2 O (l) can be “balanced” by changing the formula of the product to H 2 O 2 . Explain why this is incorrect. To change the subscripts like that actually changes the product to a

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Writing Chemical Equations to Symbolize Chemical Reactions

Writing Chemical Equations to Symbolize Chemical Reactions. 1. Solid aluminum metal reacts with oxygen gas to produce solid aluminum oxide. Write the formulas of the reactants and products. Al + O 2 ? Al 2 O 3 Add symbols to indicate physical state. Al (s) + O 2 (g) ? Al 2 O 3 (s)

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Writing Chemical Equations to Symbolize Chemical Reactions

Writing Chemical Equations to Symbolize Chemical Reactions. Chapter 6 & 7. 1. Solid aluminum metal reacts with oxygen gas to produce solid aluminum oxide. Write the formulas of the reactants and products. Al + O 2 ? Al 2 O 3 Add symbols to indicate physical state.

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Chapter 8 Notes Chemical Reactions

Chapter 8 Notes Chemical Reactions. I. Describing Chemical Change. Arrow separates the reactants (on left) from the products (on right); plus signs separate multiple reactants and products. Chemical Equation :. Ex. Fe + O 2 ? Fe 2 O 3.

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??? ??????????

??? ??????????. ????. ???. P51 ???? ??. ?????. ???????. ????. 2FeCl 3 +Fe=3FeCl 2. ?????. 2FeCl 2 +Cl 2 =2FeCl 3. back. ??. 2. ???????. ? 1 ? Fe 3+ ??? ?? Fe 3+ ?????? KSCN ????? ??? ?????????? Fe 3+ ???? ? 2 ? Fe 3+ ???? 2Fe 3+ + Fe = 3Fe 2+ ?.

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Stoichiometry

Stoichiometry. Coach Cox. What is Stoichiometry?. Stoichiometry is the study of the quantitative relationships between the amounts of reactants used and the products formed by a chemical reaction Stoichiometry is based on the Law of Conservation of Mass

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Types of Chemical Reactions

Types of Chemical Reactions. Reactions can be classified by what happens. Learning Objectives. Distinguish between synthesis and decomposition reactions. Identify replacement reaction as single or double replacement reactions. Identify the characteristics common to all oxidation reactions.

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