What does a negative AHf for a molecule mean? A. Energy was added when the molecule changed phases. B. Energy was added when the

Question

What does a negative AHf for a molecule mean?
A. Energy was added when the molecule changed phases.
B. Energy was added when the molecule was formed from its
elements.
C. Energy was released when the molecule was formed from its
elements.
O D. Energy was released when the molecule went through a phase
change.
SUBMIT

in progress 0
Khải Quang 3 years 2021-08-26T10:14:31+00:00 1 Answers 18 views 0

Answers ( )

  1. lethu
    0
    2021-08-26T10:16:04+00:00
    Reply

    Option D I got it right

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )