Write the reaction equations: ethanol – ethanal – ethanic acid – ethyl formate

Let’s implement the solution, write down the equations:
С2Н5ОН + CuO = CH3 – COH + Cu + H2O – reaction of ethanol oxidation with copper oxide when heated, ethanal is obtained, copper is released;
СН3 – СОН + Ag2O = CH3COOH + 2Ag – qualitative reaction to aldehyde, acetic acid and silver are released;
CH3COOH + NaOH = CH3COONa + H2O – exchange, sodium acetate was formed;
CH3COONa + NaOH = CH4 + Na2CO3 – methane was released during the exchange reaction;
CH4 + Cl2 = CH3Cl + HCl – substitutions, methane chloride was obtained;
CH3Cl + KOH = CH3OH + KCl – exchange, methanol is released;
CH3OH + CuO = HCOH + Cu + H2O – oxidation of methanol, methanal was obtained;
НСОН + Ag2O = HCOOH + 2Ag – formic acid was formed during the reaction of the silver mirror;
НСООН + С2Н5ОН = НСОО – С2Н5 + Н2О – esterification, ethyl formate was obtained.