Final answer:
The result of reversing the reaction and multiplying it by 2 is that each substance's coefficient in the equation is doubled and switched sides, reflecting the reverse process of the reaction.
Step-by-step explanation:
If you need to reverse the following reaction and multiply it by 2, the resulting equation would look like: The reverse of the given reaction, with coefficients doubled. This means that every substance in the original equation will appear on the opposite side in the reversed equation, and each of their coefficients will be multiplied by 2. For example, if the original reaction was A + B → C + D, the reversed and multiplied reaction would be 2C + 2D → 2A + 2B. Additionally, if the reaction involves an equilibrium constant expression, the reverse reaction will have the inverse of that expression, and all the exponents in the expression will be doubled because the coefficients are doubled.