Ch 4.1 Chem reactions

Ch 4.1 Chem reactions - Chapter 4: Types of Chemical...

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Chapter 4 1 Chapter 4: Types of Chemical Reactions and Solution Stoichiometry Georgia Tech Chem 1310J Fall 2009
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Chapter 4 2 Solutions and Solvation Solution : A homogenous mixture of two or more substances that has no visible boundaries among its components. The substances disperse into each other at the level of individual atoms/molecules/ions. Two major components of a solution: – Solvent : – Solute : – Solvation (also dissolution):
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Chapter 4 3 Many Different Types of Solutions The solute and solvent can each be any combination of solid/liquid/gas. Examples: – Solvent=gas and Solute=gas: – Solvent=liquid and Solute=liquid: – Solvent=liquid and Solute=gas: – Solvent=solid and Solute=gas: – Solvent=liquid and Solute=solid:
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Chapter 4 4 Water, the Common Solvent Solutions in which water is the solvent are called aqueous solutions. Abbreviated (aq) in chemical equations. In aqueous solutions the process of solvation can also be called hydration . It is water’s polarity that is largely responsible for water being such an effective solvent.
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Chapter 4 5 Ionic Compounds and Water All ionic compounds are solids (salts) in the range of temperature in which water is a liquid. They have rigid lattices in which strong forces (ionic bonds) pin the constituent ions in place. The high melting points of ionic compounds indicate that a good deal of
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Ch 4.1 Chem reactions - Chapter 4: Types of Chemical...

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