Name this reaction [ mathrm(H)_(3) mathrm(C)-mathrm(CH)-mathrm(CH)=mathrm(CH)_(3) mathrm(CH)_(3) ]

The reaction you have provided is the addition of hydrogen (H₂) to 1,3-butadiene (CH₂=CH-CH=CH₂). This reaction is known as hydrogenation.<br /><br />In this reaction, the double bonds in 1,3-butadiene are broken, and hydrogen atoms are added to the carbon atoms, resulting in the formation of 1,3-butene (CH₂=CH-CH₂-CH₃).<br /><br />The balanced chemical equation for this reaction is:<br /><br />\[<br />\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CH}=\mathrm{CH}_{2} + \mathrm{H}_{2} \rightarrow \mathrm{CH}_{2}-CH}-\mathrm{CH}_{2}-\mathrm{CH}_{3}<br />\]<br /><br />This reaction is typically catalyzed by a metal catalyst such as platinum (Pt), palladium (Pd), or nickel (Ni). The catalyst provides a surface for the reaction to occur, allowing the hydrogen molecules to interact with the double bonds in the 1,3-butadiene molecule.<br /><br />Hydrogenation reactions are commonly used in the production of various chemicals and materials, such as the conversion of vegetable oils to margarine or the synthesis of alkanes in the petroleum industry.