Question

In the final chemical equation, HF and O2 are the products that are formed through the reaction between H2O and F2. Before you can add these intermediate chemical equations, you need to alter them by multiplying the

A.second equation by 2 and reversing the first equation.
B.first equation by 2 and reversing it.
C.first equation by (1/2) and reversing the second equation.
D.second equation by 2 and reversing it.

Answer 1

To alter the intermediate equations when adding them, the second equation should be multiplied by 2 and the first equation should be reversed.

Step-by-step explanation:

To alter the intermediate chemical equations when adding them, you need to multiply the second equation by 2 and reverse the first equation. By doing so, you ensure that the equation is balanced and that the coefficients are in the correct ratio. For example, if the first equation is 2H₂ + O₂ → 2H₂O, you would reverse it to get O₂ + 2H₂ → 2H₂O, and then multiply the second equation by 2 to get 2H₂ + O₂ → 2H₂O.