why does chemicals evolve gas...[ without reaction]...
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A gas evolution reaction is a chemicalreaction in which one of the end products is a gas such as oxygen or carbon dioxide. Gas evolution reactions may be carried out in a fume chamber when the gases produced arepoisonous when inhaled or areexplosive.
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The atoms of these reactants arerearranged when they come into contact with each other and reassembled to form water, carbon dioxide, the gas product, and sodium citrate. In our Alka-Seltzer reaction, the bubbles are the product carbon dioxide
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