Arnold K H Tan's answer to Nornisha Mutalip's Secondary 4 A Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Arnold K H Tan
Arnold K H Tan's answer
2102 answers (A Helpful Person)
1st
Note that Bromine is in Group VII, so its formula is Br2. There are 2 moles of H atoms per 1 mole of H2 molecules.
Nornisha Mutalip
Nornisha Mutalip
6 years ago
tq