Post a New Question

Science, Chemistry

posted by .

Hess's law ____.
A) makes it possible to calculate ΔH for complicated chemical reactions
B) states that when you reverse a chemical equation, the sign of ΔH does not change.
C) determines the way a calorimeter works
D) describes the vaporization of solids

Highly confused for this question, I originally thought B but, doesn't the sign of ΔH change?

  • Science, Chemistry -

    true, that is why A is the correct choice

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

More Related Questions

Post a New Question