4x A balanced chemical reaction obeys the law of

A balanced chemical reaction obeys the law of conservation of mass, which states that matter cannot be created or destroyed in an isolated system. This means that the total mass of reactants must equal the total mass of products. When you balance a chemical equation, you're ensuring that the number of atoms for each element is the same on both sides, which visually represents this fundamental principle of chemistry. In practical terms, when you mix reactants to produce products, you can quantify the amounts involved. This law is essential in industries like pharmaceuticals, where precise measurements are crucial for producing effective medicines. It also applies to everyday situations, such as cooking, where mixing ingredients chemically transforms them into delicious dishes, following the same conservation principles!