The reverse reaction for a chemical equation has the

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determined from the reaction’s coefficients. The reverse reaction for a chemical equation has the same relative amounts of substances as the forward reaction. Balancing Chemical Equations: Identify the names of the reactants and the products and write a word equation Write a formula equation by substituting correct formulas for the names of the reactants and the products Balance the formula equation according to the law of conservation of mass Count atoms to be sure that the equation is balanced Questions: 1. Word equations use words, formula equations use chemical formulas, and chemical equations represent, with symbols and formulas, the identities and relative amounts of the reactants and products in a chemical reaction. 2. Sulfuric acid and sodium hydroxide sodium sulfate and water – H2SO4 + NaOH Na2(SO4) + H20 3. Potassium and water yield aqueous potassium hydroxide and hydrogen gas Iron reacts with chlorine gas to yield iron (III) chloride 4. Hydrogen sulfide gas + oxygen gas sulfur dioxide gas + water vapor H2S + O2 SO2 + H2O 2(H2S) + 3(O2) 2(SO2) + 2(H2O) 5.
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  • Fall '10
  • Woroniecki
  • Reaction, Chemical reaction

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