Question

suppose a reaction were to happen in an open container in a lab. during the reaction, the scientist observes the chemicals bubble, and produce a gas. during the analysis the scientist notices that the reactants weighed 20 g when he started, and the product weighed 18 g. explain what happened. his chemical reaction defied the law of conservation of mass the reactants created matter during the reaction the gas that was produced was not able to be weighed since the container was open. the product destroyed mass during the reactio

Explanation:

According to the law of conservation of mass, in a chemical reaction, the total mass of reactants equals the total mass of products. Here, the container is open. The gas produced during the reaction escaped into the air. So, the mass of the products (measured as 18g) is less than the mass of the reactants (20g) because the mass of the gas that escaped is not accounted for in the final measurement.

Answer:

The gas that was produced was not able to be weighed since the container was open.