'Reverse reactions' diaporamas de présentation

Chapter 14 Chemical Equilibrium

Chemistry: A Molecular Approach , 1 st Ed. Nivaldo Tro. Chapter 14 Chemical Equilibrium. Roy Kennedy Massachusetts Bay Community College Wellesley Hills, MA. 2008, Prentice Hall. Hemoglobin. protein (Hb) found in red blood cells that reacts with O 2

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Chapter 18 Rates of Reaction

Chapter 18 Rates of Reaction. Collision Theory. The speed of a chemical reactions can vary from instantaneous (strike a match) to extremely slow (coal) Speed is measured as a change in distance in a given interval of time. Rate = distance/time

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Unit 7: General Equilibrium

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Equilibrium

Equilibrium. --another concept that the mentally unbalanced struggle with. When you set up a reaction:. A + B ? C + D The reactants in the flask start to make products. [A] and [B] fall The rate of the reaction begins to slow as reactants are used. Almost any reaction is reversible.

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Chemical Equilibrium

Chemical Equilibrium. A dynamic process. Chemical Equilibrium. When compounds react they eventually form a mixture of products and un-reacted reactants in a dynamic equilibrium.

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Chemical Equilibrium

Chemical Equilibrium. Chapter 14. Equilibrium: the extent of a reaction. In stoichiometry we talk about theoretical yields, and the many reasons actual yields may be lower.

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Environmental Chemistry

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Equilibrium

Equilibrium. Click to start. The concentrations of the reactants adnd products are equal. A. The forward reaction is exothermic. B. The forward and reverse reactions proceed at equal rates. C. The forward and reverse reactions have stopped. D. Question 1.

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Equilibrium: The Extent of Chemical Reactions

Equilibrium: The Extent of Chemical Reactions. N 2 O 4 ( g ) 2NO 2 ( g ). Figure 17.1. Reaching equilibrium on the macroscopic and molecular levels. Equilibrium - the condition in which the concentrations of all the reactants and products in a closed system cease to change with time.

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Chemical Equilibrium

Chemical Equilibrium. Chapter 13 Introduction. Intro:. Many chemical reactions go to completion (where all reactants are consumed to form product) This unit deals with reactions that do not completely convert all reactants to products. Chemical Equilibrium.

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Chapter 16

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Preview

Standardized Test Preparation. Chapter 18. Preview. Multiple Choice Short Answer Extended Response. Multiple Choice. 1. A chemical reaction is in equilibrium when A. forward and reverse reactions have ceased. B. the equilibrium constant equals 1.

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Kinetics of Elementary Reactions

Kinetics of Elementary Reactions. A reaction is elementary if it takes place in a single irreducible act at the molecular level, just the way it is written in the stoichiometric equation. No intermediate between reactants and products can be detected (or visualized).

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Equilibrium Law

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Plant Homeostasis

Plant Homeostasis. Structure and Function. Flowers. Organs of sexual reproduction in plants. Roots. Function Provide support Absorb water Osmosis occurs at the root tip. May contain sugars that help the plant get energy. Leaf Function.

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Equilibrium Revision

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1. Chemical reactions in cells

1. Chemical reactions in cells.

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Dynamic Equilibrium

Dynamic Equilibrium. An equilibrium exists when a reversible reaction reaches a point where the forward and reverse reactions are happening at the same rate A + B ? C + D Reactants Products. Dynamic Equilibrium.

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5/6/14 no QOTD today

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Acids and Bases: Introductory Concepts

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