Write the balanced chemical equation for the preparation of Ethyne using Calcium carbide

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Solution

About Ethyne ( $C_{2} H_{2}$ ):
The first member of the alkyne is Ethyne (Acetylene) $C_{2} H_{2}$ with two carbon atoms bonded by a triple bond.
The molecular formula of Ethyne is $C_{2} H_{2}$
The structural formula of Ethyne: $H - C \equiv C - H$

Formation of Ethyne using Calcium carbide
Calcium carbide ( $C a C_{2}$ ) reacts with water to give Ethyne $(C_{2} H_{2})$ or Acetylene gas and Calcium hydroxide ( $C a {(O H)}_{2}$ ).
Acetylene $(C_{2} H_{2})$ is basically a colorless gas.
The balanced chemical equation for the preparation of Ethyne using Calcium carbide is as follows:
$\underset{Calcium carbide}{{CaC}_{2} (s)} + \underset{Water}{2 H_{2} O} (l) \to \underset{Acetylene gas}{C_{2} H_{2} (g)} + \underset{calcium hydroxide}{Ca {(OH)}_{2} (aq)}$

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