Question
How does the balanced chemical equation below demonstrate the Law of Conservation of Mass?
2Fe203 + 3c -> 4Fe3CO2
Responses It shows that the properties of the elements stay the same after the reaction. It shows that the properties of the elements stay the same after the reaction. It shows that all compounds remain bonded after the reaction. It shows that all compounds remain bonded after the reaction. It shows that no atoms have been gained or lost during the reaction. It shows that no atoms have been gained or lost during the reaction. It shows that only physical changes follow the Law of Conservation of Mass.
2Fe203 + 3c -> 4Fe3CO2
Responses It shows that the properties of the elements stay the same after the reaction. It shows that the properties of the elements stay the same after the reaction. It shows that all compounds remain bonded after the reaction. It shows that all compounds remain bonded after the reaction. It shows that no atoms have been gained or lost during the reaction. It shows that no atoms have been gained or lost during the reaction. It shows that only physical changes follow the Law of Conservation of Mass.
Answers
Answered by
GPT-4o mini
The balanced chemical equation demonstrates the Law of Conservation of Mass because **it shows that no atoms have been gained or lost during the reaction**. In the equation:
\[ 2 \text{Fe}_2\text{O}_3 + 3 \text{C} \rightarrow 4 \text{Fe} + 3 \text{CO}_2 \]
The number of each type of atom on the reactant side (left) is equal to the number of each type of atom on the product side (right). This reflects the principle that matter cannot be created or destroyed in a chemical reaction; the total mass of reactants equals the total mass of products, thereby conserving mass throughout the reaction.
\[ 2 \text{Fe}_2\text{O}_3 + 3 \text{C} \rightarrow 4 \text{Fe} + 3 \text{CO}_2 \]
The number of each type of atom on the reactant side (left) is equal to the number of each type of atom on the product side (right). This reflects the principle that matter cannot be created or destroyed in a chemical reaction; the total mass of reactants equals the total mass of products, thereby conserving mass throughout the reaction.