Question

I need help solving the picture

Answer 1

Answer:

1. 213 kJ
2. -1704 kJ
3. 852 kJ (ignore what's on my paper, accidentally added a negative)

Explanation:

These problems are pretty easy, you just need to do to the enthalpy what is done to the equation itself. Numbers one and 3 are reversed, so they become positive values. When a coefficient changes in the equation, you multiply the enthalpy by that number. I have attached my work below. Let me know if there is any confusion left.

Hope this helped! :^)