Che 103 chapter3

Write the balanced chemical equation for this

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Unformatted text preview: ydrochloric acid to form aqueous magnesium chloride and water. • Write the balanced chemical equation for this reaction. Chemical Equations: Review • What Scientific Principles are used in the process of balancing chemical equations? • What symbols are used in chemical equations: gasses: _____ liquids: _____ solids: _____ aqueous species in solution: _____ • What is the difference between P4 and 4P in an eq.? • In balancing a chemical equation, why are the reactant and product subscripts not changed? Chemical Equilibrium When writing chemical reactions one starts with: Reactants products N2(g) + 3H2(g) 2NH3(g) Some reactions can also run in reverse: reverse 2NH3(g) N2(g) + 3H2(g) Under these conditions, the reaction can be written: 3H2 (g) + N2 (g) € 2NH3 (g) Double arrows indicate “Equilibrium”. Double “Equilibrium”. Chemical Equilibrium Chemical Once equilibrium is achieved, reaction continues, but there is no net change in amounts of products or reactants. Classifying C...
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