Answer:
First Diagram
Step-by-step explanation:
The law of conservation of mass states that mass cannot be created or destroyed in a closed system during a chemical reaction. This means that the total mass of the reactants must equal the total mass of the products.
To determine which diagram follows the law of conservation of mass, we need to ensure that the number and type of atoms on the reactant side (left) are equal to the number and type of atoms on the product side (right). Let's analyze each option:
Option 1:
- Reactants: One dark atom and two light atoms.
- Products: One dark atom and two light atoms.
Option 2:
- Reactants: One dark atom and three light atoms.
- Products: Two dark atoms and two light atoms.
Option 3:
- Reactants: Two dark atoms and one light atom.
- Products: One dark atoms and one light atom.
Option 4:
- Reactants: Two dark atoms and two light atoms.
- Products: One dark atom and two light atoms.
Therefore, the diagram that follows the law of conservation of mass is the first diagram.
