Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 4 | Chemistry
One Answer Below
Anyone can contribute an answer, even non-tutors.
How do you get the answer for qn 4?
Date Posted: 6 years ago
Views: 525
Reaction for the second chem eqn is endothermic hence enthalpy change is positive. As for the value, you gotta compare the coefficients of the elements and compounds to the previous/first chem eqn. You will realise that it is halved so the value for the second eqn also halved.
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
You're welcome
Date Posted:
6 years ago
360 Tutoring Program