Answer:
Step-by-step explanation:
In picture 1, you have the reaction involved, which you miss in the question. Picture 2 is the mechanism of reaction.
In this case, we have acidic conditions so we are promoving a electrophylic adition reaction, with a carbocation intermediate. The first product is the substitution product with chlorine and the other with the Ethanol.
In the first step, the double bond gets the Hydrogen from the acid and form the carbocation in carbon 2.
In the next step, the EtOH goes there, and form the EtOH2+. The final step is the chlorine substracting the Hydrogen from the EtOH2+, and the product is formed. See picture 2.