Write the reaction equations: acetaldehyde-ethanol-chloroethane-butane-acetic acid-ethyl acetate

Let’s write down the solution, compose the equations:
CH3 – СОН + Н2 = С2Н5ОН – addition reaction, ethanol was obtained;
С2Н5ОН + НCl = C2H5Cl + H2O – exchange, ethane chloride is released;
2С2Н5Cl + 2Na = C4H10 + 2NaCl – butane is formed during the Wurtz reaction;
C4H10 = C2H4 + C2H6 – decomposition of butane (cracking), ethylene and ethane are released;
С2Н4 + Н2О = С2Н5ОН – hydration, ethanol was obtained;
С2Н5ОН + CuO = CH3 – COH + Cu + H2O – oxidation of alcohol with copper oxide, acetaldehyde is released;
СН3 – СОН + Ag2O = CH3 – COOH + 2Ag – acetic acid obtained during the reaction of a silver mirror;
CH3 – COOH + C2H5OH = CH3COO – C2H5 + H2O – esterification, ethyl acetate was formed.
The reactions presented show the bonds between aldehydes, alcohols, carboxylic acids, and also with saturated hydrocarbons, using the example of butane.