Mass is never lost or gained in chemical reactions. We say that mass is always conserved. In other words, the total mass of products at the end of the reaction is equal to the total mass of the reactants at the beginning. This is because no atoms are created or destroyed during chemical reactions.

The products of fission are more stable, meaning that it is more difficult to split them apart. Since the binding energy per nucleon for fission products is higher, their total nucleonic mass is lower. The result of this higher binding energy and lower mass results in the production of energy.

Mass lost its absoluteness. Mass was no longer considered constant, or unchangeable. In both chemical and nuclear reactions, some conversion between rest mass and energy occurs, so that the products generally have smaller or greater mass than the reactants.

Following the Law This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions.

The mass in a chemical reaction is constant in a closed system. However, if a chemical reaction is completed in an open system, mass changes may occur. These mass changes allow scientists to monitor rates of reaction (the rate of production of a product or rate of use of reactant).

In most cases, a wood-burning fire or stove has an open combustion system, even if the fire or stove is closed off with a door. The oxygen is drawn, through air vents, from the living area itself. Good ventilation is an important prerequisite for burning wood in a fire or stove that has an open combustion system.

Mass is never lost or gained in chemical reactions. We say that mass is always conserved. This is because no atoms are created or destroyed during chemical reactions.

Mass Difference= Final Mass- Initial Mass To find the “Percent Change in Mass,” divide the “Mass Difference” by the “Initial Mass.”

In a chemical reaction the total mass of all the substances taking part in the reaction remains the same. Also, the number of atoms in a reaction remains the same. Mass cannot be created or destroyed in a chemical reaction.

Answer: An advantage in changes in matters is that change can sometimes raise efficiency. A disadvantage is that the change can initially result in reduced productivity.