will we hear pop sound in the reaction (zinc+ hydrochloric acid) and why?
Answers
Answer:Zinc reacts quickly with the acid to form bubbles of hydrogen. Carrying out the experiment in a closed sidearm flask allows collection of the gas in a balloon. Exposing the balloon to the heat of a lighted candle causes a rapid reaction, as the hydrogen reacts with oxygen to form water.
The zinc and hydrochloric acid reaction is an example of oxidation-reduction. The zinc metal begins the process as a pure metal with an ionic charge of zero and loses an electron as it reacts with the acid to become a positively charged zinc ion through oxidation. At the same time, hydrogen undergoes reduction by gaining an electron to become a neutral molecule.
The reaction between zinc and hydrochloric acid is Zn + HCl = H2 + ZnCl2.It is a single replacement reaction where zinc metal displaces the hydrogen to form hydrogen gas and zinc chloride, a salt.