The equation 2Na + 2HCl -> 2NaCl + H2

  1. Detailed information about the equation 2Na + 2HCl -> 2NaCl + H2: This is the reaction equation between Sodium metal (Na) and HCl (Hydrochloric acid) to produce Sodium chloride (NaCl) and Hydrogen gas (H2). The number of moles of the reactants and products obey the law of conservation of mass.

  2. Reaction conditions: The reaction takes place at room temperature and standard pressure. You just need to place Na in an environment containing HCl and the reaction will occur spontaneously.

  3. Reaction process: When sodium comes into contact with hydrochloric acid, sodium will be oxidized (losing electron) and chlorine will be reduced (gaining electron). As a result, sodium dissolves in the HCl solution to form sodium chloride salt, while hydrogen gas is released.

  4. Phenomena occurring: When sodium comes into contact with HCl solution, there will be a strong bubbling of hydrogen gas. If a match is held near, the flame will flare up due to the burning of hydrogen gas. At the same time, the piece of sodium will gradually dissolve in the solution.

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