explain how evolution of gas is a prmoment character of a chemical reaction
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A gas evolution reaction is a chemical reaction in which one of the end products is a gas such as oxygen or carbon dioxide.[1][2] Gas evolution reactions may be carried out in a fume chamber when the gases produced are poisonous when inhaled or explosive.
Examples Edit
A replacement reaction concerning zinc metal and hydrogen chloride:
Zn + 2 HCl → ZnCl
2 + H
2 (gas)
In this example, hydrogen gas in diatomic form is released.
A replacement reaction where gaseous hydrogen chloride and fluorine gas react to release diatomic chlorine gas (because fluorine is more electronegative):
2 HCl + F
2 → 2 HF + Cl
2 (gas)
See also Edit
Gasogene
Kipps apparatus
Gas generator
Thermal decomposition
Oxygen evolution
Examples Edit
A replacement reaction concerning zinc metal and hydrogen chloride:
Zn + 2 HCl → ZnCl
2 + H
2 (gas)
In this example, hydrogen gas in diatomic form is released.
A replacement reaction where gaseous hydrogen chloride and fluorine gas react to release diatomic chlorine gas (because fluorine is more electronegative):
2 HCl + F
2 → 2 HF + Cl
2 (gas)
See also Edit
Gasogene
Kipps apparatus
Gas generator
Thermal decomposition
Oxygen evolution
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