Answer: Either B or C
Step-by-step explanation:
The chemical reaction shown is the synthesis of water. At dynamic equilibrium, the rate of the forward reaction (2H₂ + O2 → 2H₂0) is equal to the rate of the reverse reaction (2H₂0 → 2H₂ + O2). This means that the concentration of reactants (2H₂ and O2) and products (2H₂0) will remain constant over time. In other words, the amount of water being formed is equal to the amount of water being broken down back into its reactants.