Question

1. in chemical reactions, what does the principle of conservation of mass mean? the total mass of the reactants is greater than the total mass of the products. the total mass of the reactants is less than the total mass of the products. matter is not changed. matter is not created or destroyed.

Explanation:

La ley de conservación de la masa establece que en una reacción química, la masa total de los reactantes es igual a la masa total de los productos, lo que significa que la materia no es creada ni destruida.

Answer:

Matter is not created or destroyed.