1.

Hess's law _____.

A.) makes it possible to calculate H for complicated chemical reactions

B.) states that when you reverse a chemical equation, the sign of H does not change

C.) determines the way a calorimeter works

D.) describes the vaporization of solids

Please help me. I cannot fingure this out.

Thank You

4 answers

See your later post.
Did you ever get an answer??
1. Hess's law ____.
(1 point)
(1 pt) makes it possible to calculate H for complicated chemical reactions

(0 pts) states that when you reverse a chemical equation, the sign of H does not change.

(0 pts) determines the way a calorimeter works

(0 pts) describes the vaporization of solids
The answer is A.