Chapter 7 Outline Sections 7.1-7.4

Chapter 7 Outline Sections 7.1-7.4 - Chemical Reactions -...

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Chemical Reactions - Reactant → Products · → - “yields”, “reacts to produce” - As reactants are converted to products, bonds that hold atoms together are broken and new bonds are formed. - The atoms themselves are neither created nor destroyed · Dalton’s atomic theory law of conservation of mass · Describing chemical reactions · Hydrogen peroxide →water + oxygen · Methane + oxygen → carbon dioxide + water Writing Chemical Equations - Chemical Equation – equation in which an arrow separates the formulas of the reactants (on the left) from the formulas of the products (on the right) · Formation of rust: Fe +O 2 → Fe 3 O 3 - Skeleton Equation – a chemical equation that does not indicate the relative amounts of the reactants and products · Formation of rust: Fe (s) +O 2 (g) → Fe 3 O 3 (s) - Catalyst – a substance that speeds up a reaction without being used up · Neither reactant nor product · Written above the arrow in a chemical equation Compound Manganese(IV) oxide (MnO
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Chapter 7 Outline Sections 7.1-7.4 - Chemical Reactions -...

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