Respuesta :
I think the mass the mass was less than the original because a gas was released into the atmosphere. The mass in a chemical reaction is constant in a closed system according to conservation of mass law. However, if a chemical reaction is completed in an open system, mas changes may occur. In our case i think the change in mass was due to the release of hydrogen gas from the reaction to the atmosphere.
Conservative mass states that the sum of the mass of the products produced must be equal to that of the reactants. The combined mass is less as the gas was evolved.
What is the conservation of mass?
The law of mass conservation is about the conservation of the energy and the mass of the chemical involved in the reaction. It states that the combined mass of the products of the reaction is always conserved to that of the chemical reactants.
The mass of the reaction was reduced compared to the mass of the reactants as during the acidification of the zinc strip hydrogen gas bubbles were released that had some of the mass.
Therefore, the formation of the gas depicts that the gas had some of the mass that escaped in the atmosphere.
Learn more about the law of conservation of mass here:
https://brainly.com/question/9091582
