The presence of a catalyst increases the rate of a reaction by lowering its activation energy. The molar masses in grams per mole are as follows: glucose, Instead, the chemist must identify the reactants and products and then write them in the form of a chemical equation that may or may not be balanced as first written.
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The State of Subdivision of the Reactants Except for substances in the gaseous state or in solution, reactions occur at the boundary, or interface, between two phases. In the 17th century, Johann Rudolph Glauber produced hydrochloric acid and sodium sulfate by reacting sulfuric acid and sodium chloride.
Further optimization of sulfuric acid technology resulted in the contact process in the s,  and the Haber process was developed in — for ammonia synthesis. We now have 30 hydrogen atoms on the right side but only 24 on the left.