need help with this qn, pls explain too

Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.

Question

secondary 3 | A Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question

secondary 3 A Maths Singapore

need help with this qn, pls explain too

Date Posted: 3 years ago

Comments 0 add a comment

See 1 Answer

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

Date Posted: 3 years ago

Comments 3 add a comment

3 years ago

Energy is not required to form bonds.

Energy is released when bonds are formed.

LockB

3 years ago

but isnt the bond for water H-O-H... a bit confused about why it became 2O-H

3 years ago

H-O-H

There are 2 O-H single bonds in every water molecule, 1 on each side of it.

So if you have 2 water molecules formed that will be 4 O-H bonds being formed.

Ask Singapore Homework?

Question

LockB

See 1 Answer

Valerie's answer

{{notification.title}}