Question

Consider the intermediate chemical equations below:

2H₂(g)+O₂(g)→2H₂O(g)(1)
H₂(g)+F₂(g)→2HF(g)(2)

In order to combine these intermediate chemical equations into a final equation where HF and O₂ are products formed through the reaction between H₂O and F₂, what alteration needs to be made?

a. Reverse the first equation and multiply the second equation by 2.
b. Reverse the second equation and multiply the first equation by 2.
c. Multiply the first equation by 1/2 and reverse the second equation.
d. Multiply the second equation by 2 and reverse the first equation.

Answer 1

To combine the intermediate chemical equations into a final equation, we need to reverse the first equation and multiply the second equation by 2.

Step-by-step explanation:

To combine the intermediate chemical equations into a final equation, we need to reverse the first equation and multiply the second equation by 2. This will give us:

1. 2H₂O(g) → 2H₂(g) + O₂(g)
2. 2H₂(g) + 2F₂(g) → 4HF(g)

Now, we can combine these equations to form the final equation: 2H₂O(g) + 2F₂(g) → 4HF(g) + O₂(g).